81661736

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{317}}^1\times {\mathrm{2477}}^1$

素因数の和:2813

約数の個数: 32

約数和(自身を含む): 165480840

約数和(自身を除く): 83819104

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 317, 634, 1268, 2477, 2536, 4121, 4954, 8242, 9908, 16484, 19816, 32201, 32968, 64402, 128804, 257608, 785209, 1570418, 3140836, 6281672, 10207717, 20415434, 40830868, 81661736]

約数ペア:

[(1, 81661736), (2, 40830868), (4, 20415434), (8, 10207717), (13, 6281672), (26, 3140836), (52, 1570418), (104, 785209), (317, 257608), (634, 128804), (1268, 64402), (2477, 32968), (2536, 32201), (4121, 19816), (4954, 16484), (8242, 9908)]