1280735820

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{389}}^1$

素因数の和:494

約数の個数: 384

約数和(自身を含む): 4990003200

約数和(自身を除く): 3709267380

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 18, 20, 21, 26, 27, 28, 30, 35, 36, 39, 42, 45, 52, 54, 60, 63, 65, 67, 70, 78, 84, 90, 91, 105, 108, 117, 126, 130, 134, 135, 140, 156, 180, 182, 189, 195, 201, 210, 234, 252, 260, 268, 270, 273, 315, 335, 351, 364, 378, 389, 390, 402, 420, 455, 468, 469, 540, 546, 585, 603, 630, 670, 702, 756, 778, 780, 804, 819, 871, 910, 938, 945, 1005, 1092, 1167, 1170, 1206, 1260, 1340, 1365, 1404, 1407, 1556, 1638, 1742, 1755, 1809, 1820, 1876, 1890, 1945, 2010, 2334, 2340, 2345, 2412, 2457, 2613, 2723, 2730, 2814, 3015, 3276, 3484, 3501, 3510, 3618, 3780, 3890, 4020, 4095, 4221, 4355, 4668, 4690, 4914, 5057, 5226, 5446, 5460, 5628, 5835, 6030, 6097, 7002, 7020, 7035, 7236, 7780, 7839, 8169, 8190, 8442, 8710, 9045, 9380, 9828, 10114, 10452, 10503, 10892, 11670, 12060, 12194, 12285, 12663, 13065, 13615, 14004, 14070, 15171, 15678, 16338, 16380, 16884, 17420, 17505, 18090, 18291, 20228, 21006, 21105, 23340, 23517, 24388, 24507, 24570, 25285, 25326, 26063, 26130, 27230, 28140, 30342, 30485, 31356, 32676, 35010, 35399, 36180, 36582, 39195, 40845, 42012, 42210, 45513, 47034, 49014, 49140, 50570, 50652, 52126, 52260, 52515, 54460, 54873, 60684, 60970, 63315, 70020, 70798, 73164, 73521, 75855, 78189, 78390, 81690, 84420, 91026, 91455, 94068, 98028, 101140, 104252, 105030, 106197, 109746, 117585, 121940, 122535, 126630, 130315, 136539, 141596, 147042, 151710, 156378, 156780, 163380, 164619, 176995, 182052, 182441, 182910, 210060, 212394, 219492, 227565, 234567, 235170, 245070, 253260, 260630, 273078, 274365, 294084, 303420, 312756, 318591, 329238, 338819, 353990, 364882, 365820, 367605, 390945, 424788, 455130, 469134, 470340, 490140, 521260, 530985, 546156, 547323, 548730, 637182, 658476, 677638, 682695, 703701, 707980, 729764, 735210, 781890, 823095, 910260, 912205, 938268, 955773, 1016457, 1061970, 1094646, 1097460, 1172835, 1274364, 1355276, 1365390, 1407402, 1470420, 1563780, 1592955, 1641969, 1646190, 1694095, 1824410, 1911546, 2032914, 2123940, 2189292, 2345670, 2371733, 2730780, 2736615, 2814804, 3049371, 3185910, 3283938, 3292380, 3388190, 3518505, 3648820, 3823092, 4065828, 4691340, 4743466, 4778865, 4925907, 5082285, 5473230, 6098742, 6371820, 6567876, 6776380, 7037010, 7115199, 8209845, 9148113, 9486932, 9557730, 9851814, 10164570, 10946460, 11858665, 12197484, 14074020, 14230398, 15246855, 16419690, 18296226, 19115460, 19703628, 20329140, 21345597, 23717330, 24629535, 28460796, 30493710, 32839380, 35575995, 36592452, 42691194, 45740565, 47434660, 49259070, 60987420, 64036791, 71151990, 85382388, 91481130, 98518140, 106727985, 128073582, 142303980, 182962260, 213455970, 256147164, 320183955, 426911940, 640367910, 1280735820]

約数ペア:

[(1, 1280735820), (2, 640367910), (3, 426911940), (4, 320183955), (5, 256147164), (6, 213455970), (7, 182962260), (9, 142303980), (10, 128073582), (12, 106727985), (13, 98518140), (14, 91481130), (15, 85382388), (18, 71151990), (20, 64036791), (21, 60987420), (26, 49259070), (27, 47434660), (28, 45740565), (30, 42691194), (35, 36592452), (36, 35575995), (39, 32839380), (42, 30493710), (45, 28460796), (52, 24629535), (54, 23717330), (60, 21345597), (63, 20329140), (65, 19703628), (67, 19115460), (70, 18296226), (78, 16419690), (84, 15246855), (90, 14230398), (91, 14074020), (105, 12197484), (108, 11858665), (117, 10946460), (126, 10164570), (130, 9851814), (134, 9557730), (135, 9486932), (140, 9148113), (156, 8209845), (180, 7115199), (182, 7037010), (189, 6776380), (195, 6567876), (201, 6371820), (210, 6098742), (234, 5473230), (252, 5082285), (260, 4925907), (268, 4778865), (270, 4743466), (273, 4691340), (315, 4065828), (335, 3823092), (351, 3648820), (364, 3518505), (378, 3388190), (389, 3292380), (390, 3283938), (402, 3185910), (420, 3049371), (455, 2814804), (468, 2736615), (469, 2730780), (540, 2371733), (546, 2345670), (585, 2189292), (603, 2123940), (630, 2032914), (670, 1911546), (702, 1824410), (756, 1694095), (778, 1646190), (780, 1641969), (804, 1592955), (819, 1563780), (871, 1470420), (910, 1407402), (938, 1365390), (945, 1355276), (1005, 1274364), (1092, 1172835), (1167, 1097460), (1170, 1094646), (1206, 1061970), (1260, 1016457), (1340, 955773), (1365, 938268), (1404, 912205), (1407, 910260), (1556, 823095), (1638, 781890), (1742, 735210), (1755, 729764), (1809, 707980), (1820, 703701), (1876, 682695), (1890, 677638), (1945, 658476), (2010, 637182), (2334, 548730), (2340, 547323), (2345, 546156), (2412, 530985), (2457, 521260), (2613, 490140), (2723, 470340), (2730, 469134), (2814, 455130), (3015, 424788), (3276, 390945), (3484, 367605), (3501, 365820), (3510, 364882), (3618, 353990), (3780, 338819), (3890, 329238), (4020, 318591), (4095, 312756), (4221, 303420), (4355, 294084), (4668, 274365), (4690, 273078), (4914, 260630), (5057, 253260), (5226, 245070), (5446, 235170), (5460, 234567), (5628, 227565), (5835, 219492), (6030, 212394), (6097, 210060), (7002, 182910), (7020, 182441), (7035, 182052), (7236, 176995), (7780, 164619), (7839, 163380), (8169, 156780), (8190, 156378), (8442, 151710), (8710, 147042), (9045, 141596), (9380, 136539), (9828, 130315), (10114, 126630), (10452, 122535), (10503, 121940), (10892, 117585), (11670, 109746), (12060, 106197), (12194, 105030), (12285, 104252), (12663, 101140), (13065, 98028), (13615, 94068), (14004, 91455), (14070, 91026), (15171, 84420), (15678, 81690), (16338, 78390), (16380, 78189), (16884, 75855), (17420, 73521), (17505, 73164), (18090, 70798), (18291, 70020), (20228, 63315), (21006, 60970), (21105, 60684), (23340, 54873), (23517, 54460), (24388, 52515), (24507, 52260), (24570, 52126), (25285, 50652), (25326, 50570), (26063, 49140), (26130, 49014), (27230, 47034), (28140, 45513), (30342, 42210), (30485, 42012), (31356, 40845), (32676, 39195), (35010, 36582), (35399, 36180)]