18986020

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{3529}}^1$

素因数の和:3807

約数の個数: 24

約数和(自身を含む): 40030200

約数和(自身を除く): 21044180

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 3529, 5380, 7058, 14116, 17645, 35290, 70580, 949301, 1898602, 3797204, 4746505, 9493010, 18986020]

約数ペア:

[(1, 18986020), (2, 9493010), (4, 4746505), (5, 3797204), (10, 1898602), (20, 949301), (269, 70580), (538, 35290), (1076, 17645), (1345, 14116), (2690, 7058), (3529, 5380)]