201991325

素因数分解:

$5^2\times {\mathrm{37}}^1\times {\mathrm{139}}^1\times {\mathrm{1571}}^1$

素因数の和:1757

約数の個数: 24

約数和(自身を含む): 259254240

約数和(自身を除く): 57262915

約数列:

[1, 5, 25, 37, 139, 185, 695, 925, 1571, 3475, 5143, 7855, 25715, 39275, 58127, 128575, 218369, 290635, 1091845, 1453175, 5459225, 8079653, 40398265, 201991325]

約数ペア:

[(1, 201991325), (5, 40398265), (25, 8079653), (37, 5459225), (139, 1453175), (185, 1091845), (695, 290635), (925, 218369), (1571, 128575), (3475, 58127), (5143, 39275), (7855, 25715)]