20830325

素因数分解:

$5^2\times {\mathrm{53}}^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1$

素因数の和:341

約数の個数: 24

約数和(自身を含む): 26784000

約数和(自身を除く): 5953675

約数列:

[1, 5, 25, 53, 79, 199, 265, 395, 995, 1325, 1975, 4187, 4975, 10547, 15721, 20935, 52735, 78605, 104675, 263675, 393025, 833213, 4166065, 20830325]

約数ペア:

[(1, 20830325), (5, 4166065), (25, 833213), (53, 393025), (79, 263675), (199, 104675), (265, 78605), (395, 52735), (995, 20935), (1325, 15721), (1975, 10547), (4187, 4975)]