648848

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{379}}^1$

素因数の和:494

約数の個数: 20

約数和(自身を含む): 1272240

約数和(自身を除く): 623392

約数列:

[1, 2, 4, 8, 16, 107, 214, 379, 428, 758, 856, 1516, 1712, 3032, 6064, 40553, 81106, 162212, 324424, 648848]

約数ペア:

[(1, 648848), (2, 324424), (4, 162212), (8, 81106), (16, 40553), (107, 6064), (214, 3032), (379, 1712), (428, 1516), (758, 856)]