18656820

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1$

素因数の和:119

約数の個数: 288

約数和(自身を含む): 74850048

約数和(自身を除く): 56193228

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 13, 14, 15, 17, 18, 20, 21, 26, 28, 30, 34, 35, 36, 39, 42, 45, 51, 52, 60, 63, 65, 67, 68, 70, 78, 84, 85, 90, 91, 102, 105, 117, 119, 126, 130, 134, 140, 153, 156, 170, 180, 182, 195, 201, 204, 210, 221, 234, 238, 252, 255, 260, 268, 273, 306, 315, 335, 340, 357, 364, 390, 402, 420, 442, 455, 468, 469, 476, 510, 546, 585, 595, 603, 612, 630, 663, 670, 714, 765, 780, 804, 819, 871, 884, 910, 938, 1005, 1020, 1071, 1092, 1105, 1139, 1170, 1190, 1206, 1260, 1326, 1340, 1365, 1407, 1428, 1530, 1547, 1638, 1742, 1785, 1820, 1876, 1989, 2010, 2142, 2210, 2278, 2340, 2345, 2380, 2412, 2613, 2652, 2730, 2814, 3015, 3060, 3094, 3276, 3315, 3417, 3484, 3570, 3978, 4020, 4095, 4221, 4284, 4355, 4420, 4556, 4641, 4690, 5226, 5355, 5460, 5628, 5695, 6030, 6097, 6188, 6630, 6834, 7035, 7140, 7735, 7839, 7956, 7973, 8190, 8442, 8710, 9282, 9380, 9945, 10251, 10452, 10710, 11390, 12060, 12194, 13065, 13260, 13668, 13923, 14070, 14807, 15470, 15678, 15946, 16380, 16884, 17085, 17420, 18291, 18564, 19890, 20502, 21105, 21420, 22780, 23205, 23919, 24388, 26130, 27846, 28140, 29614, 30485, 30940, 31356, 31892, 34170, 36582, 39195, 39780, 39865, 41004, 42210, 44421, 46410, 47838, 51255, 52260, 54873, 55692, 59228, 60970, 68340, 69615, 71757, 73164, 74035, 78390, 79730, 84420, 88842, 91455, 92820, 95676, 102510, 103649, 109746, 119595, 121940, 133263, 139230, 143514, 148070, 156780, 159460, 177684, 182910, 205020, 207298, 219492, 222105, 239190, 266526, 274365, 278460, 287028, 296140, 310947, 358785, 365820, 414596, 444210, 478380, 518245, 533052, 548730, 621894, 666315, 717570, 888420, 932841, 1036490, 1097460, 1243788, 1332630, 1435140, 1554735, 1865682, 2072980, 2665260, 3109470, 3731364, 4664205, 6218940, 9328410, 18656820]

約数ペア:

[(1, 18656820), (2, 9328410), (3, 6218940), (4, 4664205), (5, 3731364), (6, 3109470), (7, 2665260), (9, 2072980), (10, 1865682), (12, 1554735), (13, 1435140), (14, 1332630), (15, 1243788), (17, 1097460), (18, 1036490), (20, 932841), (21, 888420), (26, 717570), (28, 666315), (30, 621894), (34, 548730), (35, 533052), (36, 518245), (39, 478380), (42, 444210), (45, 414596), (51, 365820), (52, 358785), (60, 310947), (63, 296140), (65, 287028), (67, 278460), (68, 274365), (70, 266526), (78, 239190), (84, 222105), (85, 219492), (90, 207298), (91, 205020), (102, 182910), (105, 177684), (117, 159460), (119, 156780), (126, 148070), (130, 143514), (134, 139230), (140, 133263), (153, 121940), (156, 119595), (170, 109746), (180, 103649), (182, 102510), (195, 95676), (201, 92820), (204, 91455), (210, 88842), (221, 84420), (234, 79730), (238, 78390), (252, 74035), (255, 73164), (260, 71757), (268, 69615), (273, 68340), (306, 60970), (315, 59228), (335, 55692), (340, 54873), (357, 52260), (364, 51255), (390, 47838), (402, 46410), (420, 44421), (442, 42210), (455, 41004), (468, 39865), (469, 39780), (476, 39195), (510, 36582), (546, 34170), (585, 31892), (595, 31356), (603, 30940), (612, 30485), (630, 29614), (663, 28140), (670, 27846), (714, 26130), (765, 24388), (780, 23919), (804, 23205), (819, 22780), (871, 21420), (884, 21105), (910, 20502), (938, 19890), (1005, 18564), (1020, 18291), (1071, 17420), (1092, 17085), (1105, 16884), (1139, 16380), (1170, 15946), (1190, 15678), (1206, 15470), (1260, 14807), (1326, 14070), (1340, 13923), (1365, 13668), (1407, 13260), (1428, 13065), (1530, 12194), (1547, 12060), (1638, 11390), (1742, 10710), (1785, 10452), (1820, 10251), (1876, 9945), (1989, 9380), (2010, 9282), (2142, 8710), (2210, 8442), (2278, 8190), (2340, 7973), (2345, 7956), (2380, 7839), (2412, 7735), (2613, 7140), (2652, 7035), (2730, 6834), (2814, 6630), (3015, 6188), (3060, 6097), (3094, 6030), (3276, 5695), (3315, 5628), (3417, 5460), (3484, 5355), (3570, 5226), (3978, 4690), (4020, 4641), (4095, 4556), (4221, 4420), (4284, 4355)]