68268820

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{739}}^1$

素因数の和:928

約数の個数: 48

約数和(自身を含む): 149184000

約数和(自身を除く): 80915180

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 149, 155, 298, 310, 596, 620, 739, 745, 1478, 1490, 2956, 2980, 3695, 4619, 7390, 9238, 14780, 18476, 22909, 23095, 45818, 46190, 91636, 92380, 110111, 114545, 220222, 229090, 440444, 458180, 550555, 1101110, 2202220, 3413441, 6826882, 13653764, 17067205, 34134410, 68268820]

約数ペア:

[(1, 68268820), (2, 34134410), (4, 17067205), (5, 13653764), (10, 6826882), (20, 3413441), (31, 2202220), (62, 1101110), (124, 550555), (149, 458180), (155, 440444), (298, 229090), (310, 220222), (596, 114545), (620, 110111), (739, 92380), (745, 91636), (1478, 46190), (1490, 45818), (2956, 23095), (2980, 22909), (3695, 18476), (4619, 14780), (7390, 9238)]