20356225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{227}}^1$

素因数の和:465

約数の個数: 24

約数和(自身を含む): 26971488

約数和(自身を除く): 6615263

約数列:

[1, 5, 17, 25, 85, 211, 227, 425, 1055, 1135, 3587, 3859, 5275, 5675, 17935, 19295, 47897, 89675, 96475, 239485, 814249, 1197425, 4071245, 20356225]

約数ペア:

[(1, 20356225), (5, 4071245), (17, 1197425), (25, 814249), (85, 239485), (211, 96475), (227, 89675), (425, 47897), (1055, 19295), (1135, 17935), (3587, 5675), (3859, 5275)]