8420905

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{739}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 10549440

約数和(自身を除く): 2128535

約数列:

[1, 5, 43, 53, 215, 265, 739, 2279, 3695, 11395, 31777, 39167, 158885, 195835, 1684181, 8420905]

約数ペア:

[(1, 8420905), (5, 1684181), (43, 195835), (53, 158885), (215, 39167), (265, 31777), (739, 11395), (2279, 3695)]