87370120

素因数分解:

$2^3\times 5^1\times {\mathrm{863}}^1\times {\mathrm{2531}}^1$

素因数の和:3405

約数の個数: 32

約数和(自身を含む): 196888320

約数和(自身を除く): 109518200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 863, 1726, 2531, 3452, 4315, 5062, 6904, 8630, 10124, 12655, 17260, 20248, 25310, 34520, 50620, 101240, 2184253, 4368506, 8737012, 10921265, 17474024, 21842530, 43685060, 87370120]

約数ペア:

[(1, 87370120), (2, 43685060), (4, 21842530), (5, 17474024), (8, 10921265), (10, 8737012), (20, 4368506), (40, 2184253), (863, 101240), (1726, 50620), (2531, 34520), (3452, 25310), (4315, 20248), (5062, 17260), (6904, 12655), (8630, 10124)]