28258460

素因数分解:

$2^2\times 5^1\times {\mathrm{397}}^1\times {\mathrm{3559}}^1$

素因数の和:3965

約数の個数: 24

約数和(自身を含む): 59508960

約数和(自身を除く): 31250500

約数列:

[1, 2, 4, 5, 10, 20, 397, 794, 1588, 1985, 3559, 3970, 7118, 7940, 14236, 17795, 35590, 71180, 1412923, 2825846, 5651692, 7064615, 14129230, 28258460]

約数ペア:

[(1, 28258460), (2, 14129230), (4, 7064615), (5, 5651692), (10, 2825846), (20, 1412923), (397, 71180), (794, 35590), (1588, 17795), (1985, 14236), (3559, 7940), (3970, 7118)]