1387681715

素因数分解:

$5^1\times 7^2\times {\mathrm{947}}^1\times {\mathrm{5981}}^1$

素因数の和:6947

約数の個数: 24

約数和(自身を含む): 1939460112

約数和(自身を除く): 551778397

約数列:

[1, 5, 7, 35, 49, 245, 947, 4735, 5981, 6629, 29905, 33145, 41867, 46403, 209335, 232015, 293069, 1465345, 5664007, 28320035, 39648049, 198240245, 277536343, 1387681715]

約数ペア:

[(1, 1387681715), (5, 277536343), (7, 198240245), (35, 39648049), (49, 28320035), (245, 5664007), (947, 1465345), (4735, 293069), (5981, 232015), (6629, 209335), (29905, 46403), (33145, 41867)]