4404440

素因数分解:

$2^3\times 5^1\times {\mathrm{149}}^1\times {\mathrm{739}}^1$

素因数の和:899

約数の個数: 32

約数和(自身を含む): 9990000

約数和(自身を除く): 5585560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 149, 298, 596, 739, 745, 1192, 1478, 1490, 2956, 2980, 3695, 5912, 5960, 7390, 14780, 29560, 110111, 220222, 440444, 550555, 880888, 1101110, 2202220, 4404440]

約数ペア:

[(1, 4404440), (2, 2202220), (4, 1101110), (5, 880888), (8, 550555), (10, 440444), (20, 220222), (40, 110111), (149, 29560), (298, 14780), (596, 7390), (739, 5960), (745, 5912), (1192, 3695), (1478, 2980), (1490, 2956)]