129611996

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{89759}}^1$

素因数の和:89801

約数の個数: 18

約数和(自身を含む): 239389920

約数和(自身を除く): 109777924

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 89759, 179518, 359036, 1705421, 3410842, 6821684, 32402999, 64805998, 129611996]

約数ペア:

[(1, 129611996), (2, 64805998), (4, 32402999), (19, 6821684), (38, 3410842), (76, 1705421), (361, 359036), (722, 179518), (1444, 89759)]