127880360

素因数分解:

$2^3\times 5^1\times {\mathrm{3197009}}^1$

素因数の和:3197020

約数の個数: 16

約数和(自身を含む): 287730900

約数和(自身を除く): 159850540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3197009, 6394018, 12788036, 15985045, 25576072, 31970090, 63940180, 127880360]

約数ペア:

[(1, 127880360), (2, 63940180), (4, 31970090), (5, 25576072), (8, 15985045), (10, 12788036), (20, 6394018), (40, 3197009)]