1225964440

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{988681}}^1$

素因数の和:988723

約数の個数: 32

約数和(自身を含む): 2847404160

約数和(自身を除く): 1621439720

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 124, 155, 248, 310, 620, 1240, 988681, 1977362, 3954724, 4943405, 7909448, 9886810, 19773620, 30649111, 39547240, 61298222, 122596444, 153245555, 245192888, 306491110, 612982220, 1225964440]

約数ペア:

[(1, 1225964440), (2, 612982220), (4, 306491110), (5, 245192888), (8, 153245555), (10, 122596444), (20, 61298222), (31, 39547240), (40, 30649111), (62, 19773620), (124, 9886810), (155, 7909448), (248, 4943405), (310, 3954724), (620, 1977362), (1240, 988681)]