197687680

素因数分解:

$2^7\times 5^1\times {\mathrm{308887}}^1$

素因数の和:308906

約数の個数: 32

約数和(自身を含む): 472598640

約数和(自身を除く): 274910960

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 308887, 617774, 1235548, 1544435, 2471096, 3088870, 4942192, 6177740, 9884384, 12355480, 19768768, 24710960, 39537536, 49421920, 98843840, 197687680]

約数ペア:

[(1, 197687680), (2, 98843840), (4, 49421920), (5, 39537536), (8, 24710960), (10, 19768768), (16, 12355480), (20, 9884384), (32, 6177740), (40, 4942192), (64, 3088870), (80, 2471096), (128, 1544435), (160, 1235548), (320, 617774), (640, 308887)]