280168721

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{1061}}^1$

素因数の和:1409

約数の個数: 24

約数和(自身を含む): 346496616

約数和(自身を除く): 66327895

約数列:

[1, 7, 17, 49, 119, 317, 833, 1061, 2219, 5389, 7427, 15533, 18037, 37723, 51989, 126259, 264061, 336337, 883813, 2354359, 5717729, 16480513, 40024103, 280168721]

約数ペア:

[(1, 280168721), (7, 40024103), (17, 16480513), (49, 5717729), (119, 2354359), (317, 883813), (833, 336337), (1061, 264061), (2219, 126259), (5389, 51989), (7427, 37723), (15533, 18037)]