18181540

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{69929}}^1$

素因数の和:69951

約数の個数: 24

約数和(自身を含む): 41118840

約数和(自身を除く): 22937300

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 69929, 139858, 279716, 349645, 699290, 909077, 1398580, 1818154, 3636308, 4545385, 9090770, 18181540]

約数ペア:

[(1, 18181540), (2, 9090770), (4, 4545385), (5, 3636308), (10, 1818154), (13, 1398580), (20, 909077), (26, 699290), (52, 349645), (65, 279716), (130, 139858), (260, 69929)]