208561405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{503}}^1\times {\mathrm{6379}}^1$

素因数の和:6900

約数の個数: 16

約数和(自身を含む): 270103680

約数和(自身を除く): 61542275

約数列:

[1, 5, 13, 65, 503, 2515, 6379, 6539, 31895, 32695, 82927, 414635, 3208637, 16043185, 41712281, 208561405]

約数ペア:

[(1, 208561405), (5, 41712281), (13, 16043185), (65, 3208637), (503, 414635), (2515, 82927), (6379, 32695), (6539, 31895)]