2258840

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{379}}^1$

素因数の和:539

約数の個数: 32

約数和(自身を含む): 5130000

約数和(自身を除く): 2871160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 379, 596, 745, 758, 1192, 1490, 1516, 1895, 2980, 3032, 3790, 5960, 7580, 15160, 56471, 112942, 225884, 282355, 451768, 564710, 1129420, 2258840]

約数ペア:

[(1, 2258840), (2, 1129420), (4, 564710), (5, 451768), (8, 282355), (10, 225884), (20, 112942), (40, 56471), (149, 15160), (298, 7580), (379, 5960), (596, 3790), (745, 3032), (758, 2980), (1192, 1895), (1490, 1516)]