161005940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{8377}}^1$

素因数の和:8448

約数の個数: 36

約数和(自身を含む): 349412868

約数和(自身を除く): 188406928

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 961, 1922, 3844, 4805, 8377, 9610, 16754, 19220, 33508, 41885, 83770, 167540, 259687, 519374, 1038748, 1298435, 2596870, 5193740, 8050297, 16100594, 32201188, 40251485, 80502970, 161005940]

約数ペア:

[(1, 161005940), (2, 80502970), (4, 40251485), (5, 32201188), (10, 16100594), (20, 8050297), (31, 5193740), (62, 2596870), (124, 1298435), (155, 1038748), (310, 519374), (620, 259687), (961, 167540), (1922, 83770), (3844, 41885), (4805, 33508), (8377, 19220), (9610, 16754)]