18520580

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{71233}}^1$

素因数の和:71255

約数の個数: 24

約数和(自身を含む): 41885592

約数和(自身を除く): 23365012

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 71233, 142466, 284932, 356165, 712330, 926029, 1424660, 1852058, 3704116, 4630145, 9260290, 18520580]

約数ペア:

[(1, 18520580), (2, 9260290), (4, 4630145), (5, 3704116), (10, 1852058), (13, 1424660), (20, 926029), (26, 712330), (52, 356165), (65, 284932), (130, 142466), (260, 71233)]