20944090

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{72221}}^1$

素因数の和:72257

約数の個数: 16

約数和(自身を含む): 38999880

約数和(自身を除く): 18055790

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 72221, 144442, 361105, 722210, 2094409, 4188818, 10472045, 20944090]

約数ペア:

[(1, 20944090), (2, 10472045), (5, 4188818), (10, 2094409), (29, 722210), (58, 361105), (145, 144442), (290, 72221)]