20925575

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1619}}^1$

素因数の和:1687

約数の個数: 24

約数和(自身を含む): 28926720

約数和(自身を除く): 8001145

約数列:

[1, 5, 11, 25, 47, 55, 235, 275, 517, 1175, 1619, 2585, 8095, 12925, 17809, 40475, 76093, 89045, 380465, 445225, 837023, 1902325, 4185115, 20925575]

約数ペア:

[(1, 20925575), (5, 4185115), (11, 1902325), (25, 837023), (47, 445225), (55, 380465), (235, 89045), (275, 76093), (517, 40475), (1175, 17809), (1619, 12925), (2585, 8095)]