20008690

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{153913}}^1$

素因数の和:153933

約数の個数: 16

約数和(自身を含む): 38786328

約数和(自身を除く): 18777638

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 153913, 307826, 769565, 1539130, 2000869, 4001738, 10004345, 20008690]

約数ペア:

[(1, 20008690), (2, 10004345), (5, 4001738), (10, 2000869), (13, 1539130), (26, 769565), (65, 307826), (130, 153913)]