81261664

素因数分解:

$2^5\times {\mathrm{11}}^2\times {\mathrm{31}}^1\times {\mathrm{677}}^1$

素因数の和:740

約数の個数: 72

約数和(自身を含む): 181790784

約数和(自身を除く): 100529120

約数列:

[1, 2, 4, 8, 11, 16, 22, 31, 32, 44, 62, 88, 121, 124, 176, 242, 248, 341, 352, 484, 496, 677, 682, 968, 992, 1354, 1364, 1936, 2708, 2728, 3751, 3872, 5416, 5456, 7447, 7502, 10832, 10912, 14894, 15004, 20987, 21664, 29788, 30008, 41974, 59576, 60016, 81917, 83948, 119152, 120032, 163834, 167896, 230857, 238304, 327668, 335792, 461714, 655336, 671584, 923428, 1310672, 1846856, 2539427, 2621344, 3693712, 5078854, 7387424, 10157708, 20315416, 40630832, 81261664]

約数ペア:

[(1, 81261664), (2, 40630832), (4, 20315416), (8, 10157708), (11, 7387424), (16, 5078854), (22, 3693712), (31, 2621344), (32, 2539427), (44, 1846856), (62, 1310672), (88, 923428), (121, 671584), (124, 655336), (176, 461714), (242, 335792), (248, 327668), (341, 238304), (352, 230857), (484, 167896), (496, 163834), (677, 120032), (682, 119152), (968, 83948), (992, 81917), (1354, 60016), (1364, 59576), (1936, 41974), (2708, 30008), (2728, 29788), (3751, 21664), (3872, 20987), (5416, 15004), (5456, 14894), (7447, 10912), (7502, 10832)]