309109960

素因数分解:

$2^3\times 5^1\times {\mathrm{1571}}^1\times {\mathrm{4919}}^1$

素因数の和:6501

約数の個数: 32

約数和(自身を含む): 696081600

約数和(自身を除く): 386971640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1571, 3142, 4919, 6284, 7855, 9838, 12568, 15710, 19676, 24595, 31420, 39352, 49190, 62840, 98380, 196760, 7727749, 15455498, 30910996, 38638745, 61821992, 77277490, 154554980, 309109960]

約数ペア:

[(1, 309109960), (2, 154554980), (4, 77277490), (5, 61821992), (8, 38638745), (10, 30910996), (20, 15455498), (40, 7727749), (1571, 196760), (3142, 98380), (4919, 62840), (6284, 49190), (7855, 39352), (9838, 31420), (12568, 24595), (15710, 19676)]