20197270

素因数分解:

$2^1\times 5^1\times {\mathrm{103}}^1\times {\mathrm{19609}}^1$

素因数の和:19719

約数の個数: 16

約数和(自身を含む): 36709920

約数和(自身を除く): 16512650

約数列:

[1, 2, 5, 10, 103, 206, 515, 1030, 19609, 39218, 98045, 196090, 2019727, 4039454, 10098635, 20197270]

約数ペア:

[(1, 20197270), (2, 10098635), (5, 4039454), (10, 2019727), (103, 196090), (206, 98045), (515, 39218), (1030, 19609)]