64989850

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{18307}}^1$

素因数の和:18390

約数の個数: 24

約数和(自身を含む): 122590368

約数和(自身を除く): 57600518

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 18307, 36614, 91535, 183070, 457675, 915350, 1299797, 2599594, 6498985, 12997970, 32494925, 64989850]

約数ペア:

[(1, 64989850), (2, 32494925), (5, 12997970), (10, 6498985), (25, 2599594), (50, 1299797), (71, 915350), (142, 457675), (355, 183070), (710, 91535), (1775, 36614), (3550, 18307)]