866740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{151}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 2145024

約数和(自身を除く): 1278284

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 151, 164, 205, 287, 302, 410, 574, 604, 755, 820, 1057, 1148, 1435, 1510, 2114, 2870, 3020, 4228, 5285, 5740, 6191, 10570, 12382, 21140, 24764, 30955, 43337, 61910, 86674, 123820, 173348, 216685, 433370, 866740]

約数ペア:

[(1, 866740), (2, 433370), (4, 216685), (5, 173348), (7, 123820), (10, 86674), (14, 61910), (20, 43337), (28, 30955), (35, 24764), (41, 21140), (70, 12382), (82, 10570), (140, 6191), (151, 5740), (164, 5285), (205, 4228), (287, 3020), (302, 2870), (410, 2114), (574, 1510), (604, 1435), (755, 1148), (820, 1057)]