289774492

素因数分解:

$2^2\times 7^1\times {\mathrm{3217}}^2$

素因数の和:6445

約数の個数: 18

約数和(自身を含む): 579729192

約数和(自身を除く): 289954700

約数列:

[1, 2, 4, 7, 14, 28, 3217, 6434, 12868, 22519, 45038, 90076, 10349089, 20698178, 41396356, 72443623, 144887246, 289774492]

約数ペア:

[(1, 289774492), (2, 144887246), (4, 72443623), (7, 41396356), (14, 20698178), (28, 10349089), (3217, 90076), (6434, 45038), (12868, 22519)]