20625460

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25153}}^1$

素因数の和:25203

約数の個数: 24

約数和(自身を含む): 44371656

約数和(自身を除く): 23746196

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 25153, 50306, 100612, 125765, 251530, 503060, 1031273, 2062546, 4125092, 5156365, 10312730, 20625460]

約数ペア:

[(1, 20625460), (2, 10312730), (4, 5156365), (5, 4125092), (10, 2062546), (20, 1031273), (41, 503060), (82, 251530), (164, 125765), (205, 100612), (410, 50306), (820, 25153)]