505274240

素因数分解:

$2^7\times 5^1\times {\mathrm{789491}}^1$

素因数の和:789510

約数の個数: 32

約数和(自身を含む): 1207922760

約数和(自身を除く): 702648520

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 789491, 1578982, 3157964, 3947455, 6315928, 7894910, 12631856, 15789820, 25263712, 31579640, 50527424, 63159280, 101054848, 126318560, 252637120, 505274240]

約数ペア:

[(1, 505274240), (2, 252637120), (4, 126318560), (5, 101054848), (8, 63159280), (10, 50527424), (16, 31579640), (20, 25263712), (32, 15789820), (40, 12631856), (64, 7894910), (80, 6315928), (128, 3947455), (160, 3157964), (320, 1578982), (640, 789491)]