18640310

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{143387}}^1$

素因数の和:143407

約数の個数: 16

約数和(自身を含む): 36133776

約数和(自身を除く): 17493466

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 143387, 286774, 716935, 1433870, 1864031, 3728062, 9320155, 18640310]

約数ペア:

[(1, 18640310), (2, 9320155), (5, 3728062), (10, 1864031), (13, 1433870), (26, 716935), (65, 286774), (130, 143387)]