256827480

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{811}}^1$

素因数の和:874

約数の個数: 256

約数和(自身を含む): 982195200

約数和(自身を除く): 725367720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 13, 14, 15, 20, 21, 24, 26, 28, 29, 30, 35, 39, 40, 42, 52, 56, 58, 60, 65, 70, 78, 84, 87, 91, 104, 105, 116, 120, 130, 140, 145, 156, 168, 174, 182, 195, 203, 210, 232, 260, 273, 280, 290, 312, 348, 364, 377, 390, 406, 420, 435, 455, 520, 546, 580, 609, 696, 728, 754, 780, 811, 812, 840, 870, 910, 1015, 1092, 1131, 1160, 1218, 1365, 1508, 1560, 1622, 1624, 1740, 1820, 1885, 2030, 2184, 2262, 2433, 2436, 2639, 2730, 3016, 3045, 3244, 3480, 3640, 3770, 4055, 4060, 4524, 4866, 4872, 5278, 5460, 5655, 5677, 6090, 6488, 7540, 7917, 8110, 8120, 9048, 9732, 10543, 10556, 10920, 11310, 11354, 12165, 12180, 13195, 15080, 15834, 16220, 17031, 19464, 21086, 21112, 22620, 22708, 23519, 24330, 24360, 26390, 28385, 31629, 31668, 32440, 34062, 39585, 42172, 45240, 45416, 47038, 48660, 52715, 52780, 56770, 63258, 63336, 68124, 70557, 73801, 79170, 84344, 85155, 94076, 97320, 105430, 105560, 113540, 117595, 126516, 136248, 141114, 147602, 158145, 158340, 164633, 170310, 188152, 210860, 221403, 227080, 235190, 253032, 282228, 295204, 305747, 316290, 316680, 329266, 340620, 352785, 369005, 421720, 442806, 470380, 493899, 564456, 590408, 611494, 632580, 658532, 681240, 705570, 738010, 823165, 885612, 917241, 940760, 987798, 1107015, 1222988, 1265160, 1317064, 1411140, 1476020, 1528735, 1646330, 1771224, 1834482, 1975596, 2140229, 2214030, 2445976, 2469495, 2822280, 2952040, 3057470, 3292660, 3668964, 3951192, 4280458, 4428060, 4586205, 4938990, 6114940, 6420687, 6585320, 7337928, 8560916, 8856120, 9172410, 9877980, 10701145, 12229880, 12841374, 17121832, 18344820, 19755960, 21402290, 25682748, 32103435, 36689640, 42804580, 51365496, 64206870, 85609160, 128413740, 256827480]

約数ペア:

[(1, 256827480), (2, 128413740), (3, 85609160), (4, 64206870), (5, 51365496), (6, 42804580), (7, 36689640), (8, 32103435), (10, 25682748), (12, 21402290), (13, 19755960), (14, 18344820), (15, 17121832), (20, 12841374), (21, 12229880), (24, 10701145), (26, 9877980), (28, 9172410), (29, 8856120), (30, 8560916), (35, 7337928), (39, 6585320), (40, 6420687), (42, 6114940), (52, 4938990), (56, 4586205), (58, 4428060), (60, 4280458), (65, 3951192), (70, 3668964), (78, 3292660), (84, 3057470), (87, 2952040), (91, 2822280), (104, 2469495), (105, 2445976), (116, 2214030), (120, 2140229), (130, 1975596), (140, 1834482), (145, 1771224), (156, 1646330), (168, 1528735), (174, 1476020), (182, 1411140), (195, 1317064), (203, 1265160), (210, 1222988), (232, 1107015), (260, 987798), (273, 940760), (280, 917241), (290, 885612), (312, 823165), (348, 738010), (364, 705570), (377, 681240), (390, 658532), (406, 632580), (420, 611494), (435, 590408), (455, 564456), (520, 493899), (546, 470380), (580, 442806), (609, 421720), (696, 369005), (728, 352785), (754, 340620), (780, 329266), (811, 316680), (812, 316290), (840, 305747), (870, 295204), (910, 282228), (1015, 253032), (1092, 235190), (1131, 227080), (1160, 221403), (1218, 210860), (1365, 188152), (1508, 170310), (1560, 164633), (1622, 158340), (1624, 158145), (1740, 147602), (1820, 141114), (1885, 136248), (2030, 126516), (2184, 117595), (2262, 113540), (2433, 105560), (2436, 105430), (2639, 97320), (2730, 94076), (3016, 85155), (3045, 84344), (3244, 79170), (3480, 73801), (3640, 70557), (3770, 68124), (4055, 63336), (4060, 63258), (4524, 56770), (4866, 52780), (4872, 52715), (5278, 48660), (5460, 47038), (5655, 45416), (5677, 45240), (6090, 42172), (6488, 39585), (7540, 34062), (7917, 32440), (8110, 31668), (8120, 31629), (9048, 28385), (9732, 26390), (10543, 24360), (10556, 24330), (10920, 23519), (11310, 22708), (11354, 22620), (12165, 21112), (12180, 21086), (13195, 19464), (15080, 17031), (15834, 16220)]