91221580

素因数分解:

$2^2\times 5^1\times {\mathrm{4561079}}^1$

素因数の和:4561088

約数の個数: 12

約数和(自身を含む): 191565360

約数和(自身を除く): 100343780

約数列:

[1, 2, 4, 5, 10, 20, 4561079, 9122158, 18244316, 22805395, 45610790, 91221580]

約数ペア:

[(1, 91221580), (2, 45610790), (4, 22805395), (5, 18244316), (10, 9122158), (20, 4561079)]