289389620

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{727}}^1\times {\mathrm{1531}}^1$

素因数の和:2280

約数の個数: 48

約数和(自身を含む): 655794048

約数和(自身を除く): 366404428

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 727, 1454, 1531, 2908, 3062, 3635, 6124, 7270, 7655, 9451, 14540, 15310, 18902, 19903, 30620, 37804, 39806, 47255, 79612, 94510, 99515, 189020, 199030, 398060, 1113037, 2226074, 4452148, 5565185, 11130370, 14469481, 22260740, 28938962, 57877924, 72347405, 144694810, 289389620]

約数ペア:

[(1, 289389620), (2, 144694810), (4, 72347405), (5, 57877924), (10, 28938962), (13, 22260740), (20, 14469481), (26, 11130370), (52, 5565185), (65, 4452148), (130, 2226074), (260, 1113037), (727, 398060), (1454, 199030), (1531, 189020), (2908, 99515), (3062, 94510), (3635, 79612), (6124, 47255), (7270, 39806), (7655, 37804), (9451, 30620), (14540, 19903), (15310, 18902)]