51137620

素因数分解:

$2^2\times 5^1\times {\mathrm{89}}^1\times {\mathrm{28729}}^1$

素因数の和:28827

約数の個数: 24

約数和(自身を含む): 108599400

約数和(自身を除く): 57461780

約数列:

[1, 2, 4, 5, 10, 20, 89, 178, 356, 445, 890, 1780, 28729, 57458, 114916, 143645, 287290, 574580, 2556881, 5113762, 10227524, 12784405, 25568810, 51137620]

約数ペア:

[(1, 51137620), (2, 25568810), (4, 12784405), (5, 10227524), (10, 5113762), (20, 2556881), (89, 574580), (178, 287290), (356, 143645), (445, 114916), (890, 57458), (1780, 28729)]