20881069080

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{157}}^1\times {\mathrm{1108337}}^1$

素因数の和:1108508

約数の個数: 64

約数和(自身を含む): 63042265440

約数和(自身を除く): 42161196360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 157, 314, 471, 628, 785, 942, 1256, 1570, 1884, 2355, 3140, 3768, 4710, 6280, 9420, 18840, 1108337, 2216674, 3325011, 4433348, 5541685, 6650022, 8866696, 11083370, 13300044, 16625055, 22166740, 26600088, 33250110, 44333480, 66500220, 133000440, 174008909, 348017818, 522026727, 696035636, 870044545, 1044053454, 1392071272, 1740089090, 2088106908, 2610133635, 3480178180, 4176213816, 5220267270, 6960356360, 10440534540, 20881069080]

約数ペア:

[(1, 20881069080), (2, 10440534540), (3, 6960356360), (4, 5220267270), (5, 4176213816), (6, 3480178180), (8, 2610133635), (10, 2088106908), (12, 1740089090), (15, 1392071272), (20, 1044053454), (24, 870044545), (30, 696035636), (40, 522026727), (60, 348017818), (120, 174008909), (157, 133000440), (314, 66500220), (471, 44333480), (628, 33250110), (785, 26600088), (942, 22166740), (1256, 16625055), (1570, 13300044), (1884, 11083370), (2355, 8866696), (3140, 6650022), (3768, 5541685), (4710, 4433348), (6280, 3325011), (9420, 2216674), (18840, 1108337)]