28772980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{35089}}^1$

素因数の和:35139

約数の個数: 24

約数和(自身を含む): 61898760

約数和(自身を除く): 33125780

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 35089, 70178, 140356, 175445, 350890, 701780, 1438649, 2877298, 5754596, 7193245, 14386490, 28772980]

約数ペア:

[(1, 28772980), (2, 14386490), (4, 7193245), (5, 5754596), (10, 2877298), (20, 1438649), (41, 701780), (82, 350890), (164, 175445), (205, 140356), (410, 70178), (820, 35089)]