68148980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{727}}^1$

素因数の和:888

約数の個数: 48

約数和(自身を含む): 147987840

約数和(自身を除く): 79838860

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 109, 172, 215, 218, 430, 436, 545, 727, 860, 1090, 1454, 2180, 2908, 3635, 4687, 7270, 9374, 14540, 18748, 23435, 31261, 46870, 62522, 79243, 93740, 125044, 156305, 158486, 312610, 316972, 396215, 625220, 792430, 1584860, 3407449, 6814898, 13629796, 17037245, 34074490, 68148980]

約数ペア:

[(1, 68148980), (2, 34074490), (4, 17037245), (5, 13629796), (10, 6814898), (20, 3407449), (43, 1584860), (86, 792430), (109, 625220), (172, 396215), (215, 316972), (218, 312610), (430, 158486), (436, 156305), (545, 125044), (727, 93740), (860, 79243), (1090, 62522), (1454, 46870), (2180, 31261), (2908, 23435), (3635, 18748), (4687, 14540), (7270, 9374)]