61719620

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^2\times {\mathrm{1669}}^1$

素因数の和:1764

約数の個数: 36

約数和(自身を含む): 132775020

約数和(自身を除く): 71055400

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 1669, 1849, 3338, 3698, 6676, 7396, 8345, 9245, 16690, 18490, 33380, 36980, 71767, 143534, 287068, 358835, 717670, 1435340, 3085981, 6171962, 12343924, 15429905, 30859810, 61719620]

約数ペア:

[(1, 61719620), (2, 30859810), (4, 15429905), (5, 12343924), (10, 6171962), (20, 3085981), (43, 1435340), (86, 717670), (172, 358835), (215, 287068), (430, 143534), (860, 71767), (1669, 36980), (1849, 33380), (3338, 18490), (3698, 16690), (6676, 9245), (7396, 8345)]