20262580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{77933}}^1$

素因数の和:77955

約数の個数: 24

約数和(自身を含む): 45825192

約数和(自身を除く): 25562612

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 77933, 155866, 311732, 389665, 779330, 1013129, 1558660, 2026258, 4052516, 5065645, 10131290, 20262580]

約数ペア:

[(1, 20262580), (2, 10131290), (4, 5065645), (5, 4052516), (10, 2026258), (13, 1558660), (20, 1013129), (26, 779330), (52, 389665), (65, 311732), (130, 155866), (260, 77933)]