87904090

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{111271}}^1$

素因数の和:111357

約数の個数: 16

約数和(自身を含む): 160231680

約数和(自身を除く): 72327590

約数列:

[1, 2, 5, 10, 79, 158, 395, 790, 111271, 222542, 556355, 1112710, 8790409, 17580818, 43952045, 87904090]

約数ペア:

[(1, 87904090), (2, 43952045), (5, 17580818), (10, 8790409), (79, 1112710), (158, 556355), (395, 222542), (790, 111271)]