89772820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{2221}}^1$

素因数の和:2320

約数の個数: 48

約数和(自身を含む): 197100288

約数和(自身を除く): 107327468

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 430, 470, 860, 940, 2021, 2221, 4042, 4442, 8084, 8884, 10105, 11105, 20210, 22210, 40420, 44420, 95503, 104387, 191006, 208774, 382012, 417548, 477515, 521935, 955030, 1043870, 1910060, 2087740, 4488641, 8977282, 17954564, 22443205, 44886410, 89772820]

約数ペア:

[(1, 89772820), (2, 44886410), (4, 22443205), (5, 17954564), (10, 8977282), (20, 4488641), (43, 2087740), (47, 1910060), (86, 1043870), (94, 955030), (172, 521935), (188, 477515), (215, 417548), (235, 382012), (430, 208774), (470, 191006), (860, 104387), (940, 95503), (2021, 44420), (2221, 40420), (4042, 22210), (4442, 20210), (8084, 11105), (8884, 10105)]