64061920

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{1621}}^1$

素因数の和:1668

約数の個数: 96

約数和(自身を含む): 171672480

約数和(自身を除く): 107610560

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 19, 20, 26, 32, 38, 40, 52, 65, 76, 80, 95, 104, 130, 152, 160, 190, 208, 247, 260, 304, 380, 416, 494, 520, 608, 760, 988, 1040, 1235, 1520, 1621, 1976, 2080, 2470, 3040, 3242, 3952, 4940, 6484, 7904, 8105, 9880, 12968, 16210, 19760, 21073, 25936, 30799, 32420, 39520, 42146, 51872, 61598, 64840, 84292, 105365, 123196, 129680, 153995, 168584, 210730, 246392, 259360, 307990, 337168, 400387, 421460, 492784, 615980, 674336, 800774, 842920, 985568, 1231960, 1601548, 1685840, 2001935, 2463920, 3203096, 3371680, 4003870, 4927840, 6406192, 8007740, 12812384, 16015480, 32030960, 64061920]

約数ペア:

[(1, 64061920), (2, 32030960), (4, 16015480), (5, 12812384), (8, 8007740), (10, 6406192), (13, 4927840), (16, 4003870), (19, 3371680), (20, 3203096), (26, 2463920), (32, 2001935), (38, 1685840), (40, 1601548), (52, 1231960), (65, 985568), (76, 842920), (80, 800774), (95, 674336), (104, 615980), (130, 492784), (152, 421460), (160, 400387), (190, 337168), (208, 307990), (247, 259360), (260, 246392), (304, 210730), (380, 168584), (416, 153995), (494, 129680), (520, 123196), (608, 105365), (760, 84292), (988, 64840), (1040, 61598), (1235, 51872), (1520, 42146), (1621, 39520), (1976, 32420), (2080, 30799), (2470, 25936), (3040, 21073), (3242, 19760), (3952, 16210), (4940, 12968), (6484, 9880), (7904, 8105)]