20874740

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{25457}}^1$

素因数の和:25507

約数の個数: 24

約数和(自身を含む): 44907912

約数和(自身を除く): 24033172

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 25457, 50914, 101828, 127285, 254570, 509140, 1043737, 2087474, 4174948, 5218685, 10437370, 20874740]

約数ペア:

[(1, 20874740), (2, 10437370), (4, 5218685), (5, 4174948), (10, 2087474), (20, 1043737), (41, 509140), (82, 254570), (164, 127285), (205, 101828), (410, 50914), (820, 25457)]