218660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^2$

素因数の和:80

約数の個数: 36

約数和(自身を含む): 512148

約数和(自身を除く): 293488

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 29, 52, 58, 65, 116, 130, 145, 260, 290, 377, 580, 754, 841, 1508, 1682, 1885, 3364, 3770, 4205, 7540, 8410, 10933, 16820, 21866, 43732, 54665, 109330, 218660]

約数ペア:

[(1, 218660), (2, 109330), (4, 54665), (5, 43732), (10, 21866), (13, 16820), (20, 10933), (26, 8410), (29, 7540), (52, 4205), (58, 3770), (65, 3364), (116, 1885), (130, 1682), (145, 1508), (260, 841), (290, 754), (377, 580)]