628780

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{211}}^1$

素因数の和:369

約数の個数: 24

約数和(自身を含む): 1335600

約数和(自身を除く): 706820

約数列:

[1, 2, 4, 5, 10, 20, 149, 211, 298, 422, 596, 745, 844, 1055, 1490, 2110, 2980, 4220, 31439, 62878, 125756, 157195, 314390, 628780]

約数ペア:

[(1, 628780), (2, 314390), (4, 157195), (5, 125756), (10, 62878), (20, 31439), (149, 4220), (211, 2980), (298, 2110), (422, 1490), (596, 1055), (745, 844)]