20376760

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{1607}}^1$

素因数の和:1935

約数の個数: 32

約数和(自身を含む): 46020960

約数和(自身を除く): 25644200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 1607, 2536, 3170, 3214, 6340, 6428, 8035, 12680, 12856, 16070, 32140, 64280, 509419, 1018838, 2037676, 2547095, 4075352, 5094190, 10188380, 20376760]

約数ペア:

[(1, 20376760), (2, 10188380), (4, 5094190), (5, 4075352), (8, 2547095), (10, 2037676), (20, 1018838), (40, 509419), (317, 64280), (634, 32140), (1268, 16070), (1585, 12856), (1607, 12680), (2536, 8035), (3170, 6428), (3214, 6340)]