18331640

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{8647}}^1$

素因数の和:8711

約数の個数: 32

約数和(自身を含む): 42029280

約数和(自身を除く): 23697640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 212, 265, 424, 530, 1060, 2120, 8647, 17294, 34588, 43235, 69176, 86470, 172940, 345880, 458291, 916582, 1833164, 2291455, 3666328, 4582910, 9165820, 18331640]

約数ペア:

[(1, 18331640), (2, 9165820), (4, 4582910), (5, 3666328), (8, 2291455), (10, 1833164), (20, 916582), (40, 458291), (53, 345880), (106, 172940), (212, 86470), (265, 69176), (424, 43235), (530, 34588), (1060, 17294), (2120, 8647)]