157220305

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{21821}}^1$

素因数の和:21968

約数の個数: 16

約数和(自身を含む): 207396288

約数和(自身を除く): 50175983

約数列:

[1, 5, 11, 55, 131, 655, 1441, 7205, 21821, 109105, 240031, 1200155, 2858551, 14292755, 31444061, 157220305]

約数ペア:

[(1, 157220305), (5, 31444061), (11, 14292755), (55, 2858551), (131, 1200155), (655, 240031), (1441, 109105), (7205, 21821)]