19613620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75437}}^1$

素因数の和:75459

約数の個数: 24

約数和(自身を含む): 44357544

約数和(自身を除く): 24743924

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 75437, 150874, 301748, 377185, 754370, 980681, 1508740, 1961362, 3922724, 4903405, 9806810, 19613620]

約数ペア:

[(1, 19613620), (2, 9806810), (4, 4903405), (5, 3922724), (10, 1961362), (13, 1508740), (20, 980681), (26, 754370), (52, 377185), (65, 301748), (130, 150874), (260, 75437)]