40978015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{21739}}^1$

素因数の和:21786

約数の個数: 16

約数和(自身を含む): 54784800

約数和(自身を除く): 13806785

約数列:

[1, 5, 13, 29, 65, 145, 377, 1885, 21739, 108695, 282607, 630431, 1413035, 3152155, 8195603, 40978015]

約数ペア:

[(1, 40978015), (5, 8195603), (13, 3152155), (29, 1413035), (65, 630431), (145, 282607), (377, 108695), (1885, 21739)]