28578020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{84053}}^1$

素因数の和:84079

約数の個数: 24

約数和(自身を含む): 63544824

約数和(自身を除く): 34966804

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 84053, 168106, 336212, 420265, 840530, 1428901, 1681060, 2857802, 5715604, 7144505, 14289010, 28578020]

約数ペア:

[(1, 28578020), (2, 14289010), (4, 7144505), (5, 5715604), (10, 2857802), (17, 1681060), (20, 1428901), (34, 840530), (68, 420265), (85, 336212), (170, 168106), (340, 84053)]