64143760

素因数分解:

$2^4\times 5^1\times {\mathrm{163}}^1\times {\mathrm{4919}}^1$

素因数の和:5095

約数の個数: 40

約数和(自身を含む): 150079680

約数和(自身を除く): 85935920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 163, 326, 652, 815, 1304, 1630, 2608, 3260, 4919, 6520, 9838, 13040, 19676, 24595, 39352, 49190, 78704, 98380, 196760, 393520, 801797, 1603594, 3207188, 4008985, 6414376, 8017970, 12828752, 16035940, 32071880, 64143760]

約数ペア:

[(1, 64143760), (2, 32071880), (4, 16035940), (5, 12828752), (8, 8017970), (10, 6414376), (16, 4008985), (20, 3207188), (40, 1603594), (80, 801797), (163, 393520), (326, 196760), (652, 98380), (815, 78704), (1304, 49190), (1630, 39352), (2608, 24595), (3260, 19676), (4919, 13040), (6520, 9838)]