56516920

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{3559}}^1$

素因数の和:3967

約数の個数: 32

約数和(自身を含む): 127519200

約数和(自身を除く): 71002280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3559, 3970, 7118, 7940, 14236, 15880, 17795, 28472, 35590, 71180, 142360, 1412923, 2825846, 5651692, 7064615, 11303384, 14129230, 28258460, 56516920]

約数ペア:

[(1, 56516920), (2, 28258460), (4, 14129230), (5, 11303384), (8, 7064615), (10, 5651692), (20, 2825846), (40, 1412923), (397, 142360), (794, 71180), (1588, 35590), (1985, 28472), (3176, 17795), (3559, 15880), (3970, 14236), (7118, 7940)]