16886960

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{4909}}^1$

素因数の和:4965

約数の個数: 40

約数和(自身を含む): 40183440

約数和(自身を除く): 23296480

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 430, 688, 860, 1720, 3440, 4909, 9818, 19636, 24545, 39272, 49090, 78544, 98180, 196360, 211087, 392720, 422174, 844348, 1055435, 1688696, 2110870, 3377392, 4221740, 8443480, 16886960]

約数ペア:

[(1, 16886960), (2, 8443480), (4, 4221740), (5, 3377392), (8, 2110870), (10, 1688696), (16, 1055435), (20, 844348), (40, 422174), (43, 392720), (80, 211087), (86, 196360), (172, 98180), (215, 78544), (344, 49090), (430, 39272), (688, 24545), (860, 19636), (1720, 9818), (3440, 4909)]