20133940

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{12743}}^1$

素因数の和:12831

約数の個数: 24

約数和(自身を含む): 42819840

約数和(自身を除く): 22685900

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 12743, 25486, 50972, 63715, 127430, 254860, 1006697, 2013394, 4026788, 5033485, 10066970, 20133940]

約数ペア:

[(1, 20133940), (2, 10066970), (4, 5033485), (5, 4026788), (10, 2013394), (20, 1006697), (79, 254860), (158, 127430), (316, 63715), (395, 50972), (790, 25486), (1580, 12743)]