209531405

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{569}}^1\times {\mathrm{1567}}^1$

素因数の和:2188

約数の個数: 16

約数和(自身を含む): 257402880

約数和(自身を除く): 47871475

約数列:

[1, 5, 47, 235, 569, 1567, 2845, 7835, 26743, 73649, 133715, 368245, 891623, 4458115, 41906281, 209531405]

約数ペア:

[(1, 209531405), (5, 41906281), (47, 4458115), (235, 891623), (569, 368245), (1567, 133715), (2845, 73649), (7835, 26743)]