31890080

素因数分解:

$2^5\times 5^1\times {\mathrm{199313}}^1$

素因数の和:199328

約数の個数: 24

約数和(自身を含む): 75340692

約数和(自身を除く): 43450612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199313, 398626, 797252, 996565, 1594504, 1993130, 3189008, 3986260, 6378016, 7972520, 15945040, 31890080]

約数ペア:

[(1, 31890080), (2, 15945040), (4, 7972520), (5, 6378016), (8, 3986260), (10, 3189008), (16, 1993130), (20, 1594504), (32, 996565), (40, 797252), (80, 398626), (160, 199313)]