28531900

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{6959}}^1$

素因数の和:7014

約数の個数: 36

約数和(自身を含む): 63433440

約数和(自身を除く): 34901540

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 6959, 13918, 27836, 34795, 69590, 139180, 173975, 285319, 347950, 570638, 695900, 1141276, 1426595, 2853190, 5706380, 7132975, 14265950, 28531900]

約数ペア:

[(1, 28531900), (2, 14265950), (4, 7132975), (5, 5706380), (10, 2853190), (20, 1426595), (25, 1141276), (41, 695900), (50, 570638), (82, 347950), (100, 285319), (164, 173975), (205, 139180), (410, 69590), (820, 34795), (1025, 27836), (2050, 13918), (4100, 6959)]