16665820

素因数分解:

$2^2\times 5^1\times {\mathrm{131}}^1\times {\mathrm{6361}}^1$

素因数の和:6501

約数の個数: 24

約数和(自身を含む): 35270928

約数和(自身を除く): 18605108

約数列:

[1, 2, 4, 5, 10, 20, 131, 262, 524, 655, 1310, 2620, 6361, 12722, 25444, 31805, 63610, 127220, 833291, 1666582, 3333164, 4166455, 8332910, 16665820]

約数ペア:

[(1, 16665820), (2, 8332910), (4, 4166455), (5, 3333164), (10, 1666582), (20, 833291), (131, 127220), (262, 63610), (524, 31805), (655, 25444), (1310, 12722), (2620, 6361)]