18717460

素因数分解:

$2^2\times 5^1\times {\mathrm{769}}^1\times {\mathrm{1217}}^1$

素因数の和:1995

約数の個数: 24

約数和(自身を含む): 39390120

約数和(自身を除く): 20672660

約数列:

[1, 2, 4, 5, 10, 20, 769, 1217, 1538, 2434, 3076, 3845, 4868, 6085, 7690, 12170, 15380, 24340, 935873, 1871746, 3743492, 4679365, 9358730, 18717460]

約数ペア:

[(1, 18717460), (2, 9358730), (4, 4679365), (5, 3743492), (10, 1871746), (20, 935873), (769, 24340), (1217, 15380), (1538, 12170), (2434, 7690), (3076, 6085), (3845, 4868)]