1657220

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1$

素因数の和:140

約数の個数: 48

約数和(自身を含む): 3725568

約数和(自身を除く): 2068348

約数列:

[1, 2, 4, 5, 10, 20, 41, 43, 47, 82, 86, 94, 164, 172, 188, 205, 215, 235, 410, 430, 470, 820, 860, 940, 1763, 1927, 2021, 3526, 3854, 4042, 7052, 7708, 8084, 8815, 9635, 10105, 17630, 19270, 20210, 35260, 38540, 40420, 82861, 165722, 331444, 414305, 828610, 1657220]

約数ペア:

[(1, 1657220), (2, 828610), (4, 414305), (5, 331444), (10, 165722), (20, 82861), (41, 40420), (43, 38540), (47, 35260), (82, 20210), (86, 19270), (94, 17630), (164, 10105), (172, 9635), (188, 8815), (205, 8084), (215, 7708), (235, 7052), (410, 4042), (430, 3854), (470, 3526), (820, 2021), (860, 1927), (940, 1763)]