128874025

素因数分解:

$5^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{43319}}^1$

素因数の和:43353

約数の個数: 24

約数和(自身を含む): 193380480

約数和(自身を除く): 64506455

約数列:

[1, 5, 7, 17, 25, 35, 85, 119, 175, 425, 595, 2975, 43319, 216595, 303233, 736423, 1082975, 1516165, 3682115, 5154961, 7580825, 18410575, 25774805, 128874025]

約数ペア:

[(1, 128874025), (5, 25774805), (7, 18410575), (17, 7580825), (25, 5154961), (35, 3682115), (85, 1516165), (119, 1082975), (175, 736423), (425, 303233), (595, 216595), (2975, 43319)]