20557700

素因数分解:

$2^2\times 5^2\times {\mathrm{167}}^1\times {\mathrm{1231}}^1$

素因数の和:1412

約数の個数: 36

約数和(自身を含む): 44913792

約数和(自身を除く): 24356092

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 167, 334, 668, 835, 1231, 1670, 2462, 3340, 4175, 4924, 6155, 8350, 12310, 16700, 24620, 30775, 61550, 123100, 205577, 411154, 822308, 1027885, 2055770, 4111540, 5139425, 10278850, 20557700]

約数ペア:

[(1, 20557700), (2, 10278850), (4, 5139425), (5, 4111540), (10, 2055770), (20, 1027885), (25, 822308), (50, 411154), (100, 205577), (167, 123100), (334, 61550), (668, 30775), (835, 24620), (1231, 16700), (1670, 12310), (2462, 8350), (3340, 6155), (4175, 4924)]