249545080

素因数分解:

$2^3\times 5^1\times {\mathrm{863}}^1\times {\mathrm{7229}}^1$

素因数の和:8103

約数の個数: 32

約数和(自身を含む): 562204800

約数和(自身を除く): 312659720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 863, 1726, 3452, 4315, 6904, 7229, 8630, 14458, 17260, 28916, 34520, 36145, 57832, 72290, 144580, 289160, 6238627, 12477254, 24954508, 31193135, 49909016, 62386270, 124772540, 249545080]

約数ペア:

[(1, 249545080), (2, 124772540), (4, 62386270), (5, 49909016), (8, 31193135), (10, 24954508), (20, 12477254), (40, 6238627), (863, 289160), (1726, 144580), (3452, 72290), (4315, 57832), (6904, 36145), (7229, 34520), (8630, 28916), (14458, 17260)]