39451640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22937}}^1$

素因数の和:22991

約数の個数: 32

約数和(自身を含む): 90834480

約数和(自身を除く): 51382840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 430, 860, 1720, 22937, 45874, 91748, 114685, 183496, 229370, 458740, 917480, 986291, 1972582, 3945164, 4931455, 7890328, 9862910, 19725820, 39451640]

約数ペア:

[(1, 39451640), (2, 19725820), (4, 9862910), (5, 7890328), (8, 4931455), (10, 3945164), (20, 1972582), (40, 986291), (43, 917480), (86, 458740), (172, 229370), (215, 183496), (344, 114685), (430, 91748), (860, 45874), (1720, 22937)]