29931640

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{18251}}^1$

素因数の和:18303

約数の個数: 32

約数和(自身を含む): 68992560

約数和(自身を除く): 39060920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 18251, 36502, 73004, 91255, 146008, 182510, 365020, 730040, 748291, 1496582, 2993164, 3741455, 5986328, 7482910, 14965820, 29931640]

約数ペア:

[(1, 29931640), (2, 14965820), (4, 7482910), (5, 5986328), (8, 3741455), (10, 2993164), (20, 1496582), (40, 748291), (41, 730040), (82, 365020), (164, 182510), (205, 146008), (328, 91255), (410, 73004), (820, 36502), (1640, 18251)]