78974080

素因数分解:

$2^7\times 5^1\times {\mathrm{123397}}^1$

素因数の和:123416

約数の個数: 32

約数和(自身を含む): 188798940

約数和(自身を除く): 109824860

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 123397, 246794, 493588, 616985, 987176, 1233970, 1974352, 2467940, 3948704, 4935880, 7897408, 9871760, 15794816, 19743520, 39487040, 78974080]

約数ペア:

[(1, 78974080), (2, 39487040), (4, 19743520), (5, 15794816), (8, 9871760), (10, 7897408), (16, 4935880), (20, 3948704), (32, 2467940), (40, 1974352), (64, 1233970), (80, 987176), (128, 616985), (160, 493588), (320, 246794), (640, 123397)]