138792620

素因数分解:

$2^2\times 5^1\times {\mathrm{977}}^1\times {\mathrm{7103}}^1$

素因数の和:8089

約数の個数: 24

約数和(自身を含む): 291803904

約数和(自身を除く): 153011284

約数列:

[1, 2, 4, 5, 10, 20, 977, 1954, 3908, 4885, 7103, 9770, 14206, 19540, 28412, 35515, 71030, 142060, 6939631, 13879262, 27758524, 34698155, 69396310, 138792620]

約数ペア:

[(1, 138792620), (2, 69396310), (4, 34698155), (5, 27758524), (10, 13879262), (20, 6939631), (977, 142060), (1954, 71030), (3908, 35515), (4885, 28412), (7103, 19540), (9770, 14206)]