4405780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^1$

素因数の和:208

約数の個数: 48

約数和(自身を含む): 9757440

約数和(自身を除く): 5351660

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 109, 172, 188, 215, 218, 235, 430, 436, 470, 545, 860, 940, 1090, 2021, 2180, 4042, 4687, 5123, 8084, 9374, 10105, 10246, 18748, 20210, 20492, 23435, 25615, 40420, 46870, 51230, 93740, 102460, 220289, 440578, 881156, 1101445, 2202890, 4405780]

約数ペア:

[(1, 4405780), (2, 2202890), (4, 1101445), (5, 881156), (10, 440578), (20, 220289), (43, 102460), (47, 93740), (86, 51230), (94, 46870), (109, 40420), (172, 25615), (188, 23435), (215, 20492), (218, 20210), (235, 18748), (430, 10246), (436, 10105), (470, 9374), (545, 8084), (860, 5123), (940, 4687), (1090, 4042), (2021, 2180)]