1320305

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{317}}^1$

素因数の和:353

約数の個数: 24

約数和(自身を含む): 1957608

約数和(自身を除く): 637303

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 317, 595, 833, 1585, 2219, 4165, 5389, 11095, 15533, 26945, 37723, 77665, 188615, 264061, 1320305]

約数ペア:

[(1, 1320305), (5, 264061), (7, 188615), (17, 77665), (35, 37723), (49, 26945), (85, 15533), (119, 11095), (245, 5389), (317, 4165), (595, 2219), (833, 1585)]