641374175

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{1289}}^1\times {\mathrm{1531}}^1$

素因数の和:2843

約数の個数: 24

約数和(自身を含む): 857705520

約数和(自身を除く): 216331345

約数列:

[1, 5, 13, 25, 65, 325, 1289, 1531, 6445, 7655, 16757, 19903, 32225, 38275, 83785, 99515, 418925, 497575, 1973459, 9867295, 25654967, 49336475, 128274835, 641374175]

約数ペア:

[(1, 641374175), (5, 128274835), (13, 49336475), (25, 25654967), (65, 9867295), (325, 1973459), (1289, 497575), (1531, 418925), (6445, 99515), (7655, 83785), (16757, 38275), (19903, 32225)]