20401870

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{120011}}^1$

素因数の和:120035

約数の個数: 16

約数和(自身を含む): 38883888

約数和(自身を除く): 18482018

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 120011, 240022, 600055, 1200110, 2040187, 4080374, 10200935, 20401870]

約数ペア:

[(1, 20401870), (2, 10200935), (5, 4080374), (10, 2040187), (17, 1200110), (34, 600055), (85, 240022), (170, 120011)]