28289180

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34499}}^1$

素因数の和:34549

約数の個数: 24

約数和(自身を含む): 60858000

約数和(自身を除く): 32568820

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 34499, 68998, 137996, 172495, 344990, 689980, 1414459, 2828918, 5657836, 7072295, 14144590, 28289180]

約数ペア:

[(1, 28289180), (2, 14144590), (4, 7072295), (5, 5657836), (10, 2828918), (20, 1414459), (41, 689980), (82, 344990), (164, 172495), (205, 137996), (410, 68998), (820, 34499)]