90243560

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{317}}^1\times {\mathrm{647}}^1$

素因数の和:986

約数の個数: 64

約数和(自身を含む): 222549120

約数和(自身を除く): 132305560

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 317, 440, 634, 647, 1268, 1294, 1585, 2536, 2588, 3170, 3235, 3487, 5176, 6340, 6470, 6974, 7117, 12680, 12940, 13948, 14234, 17435, 25880, 27896, 28468, 34870, 35585, 56936, 69740, 71170, 139480, 142340, 205099, 284680, 410198, 820396, 1025495, 1640792, 2050990, 2256089, 4101980, 4512178, 8203960, 9024356, 11280445, 18048712, 22560890, 45121780, 90243560]

約数ペア:

[(1, 90243560), (2, 45121780), (4, 22560890), (5, 18048712), (8, 11280445), (10, 9024356), (11, 8203960), (20, 4512178), (22, 4101980), (40, 2256089), (44, 2050990), (55, 1640792), (88, 1025495), (110, 820396), (220, 410198), (317, 284680), (440, 205099), (634, 142340), (647, 139480), (1268, 71170), (1294, 69740), (1585, 56936), (2536, 35585), (2588, 34870), (3170, 28468), (3235, 27896), (3487, 25880), (5176, 17435), (6340, 14234), (6470, 13948), (6974, 12940), (7117, 12680)]