20485270

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157579}}^1$

素因数の和:157599

約数の個数: 16

約数和(自身を含む): 39710160

約数和(自身を除く): 19224890

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 157579, 315158, 787895, 1575790, 2048527, 4097054, 10242635, 20485270]

約数ペア:

[(1, 20485270), (2, 10242635), (5, 4097054), (10, 2048527), (13, 1575790), (26, 787895), (65, 315158), (130, 157579)]