25909220

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 56947968

約数和(自身を除く): 31038748

約数列:

[1, 2, 4, 5, 10, 20, 43, 47, 86, 94, 172, 188, 215, 235, 430, 470, 641, 860, 940, 1282, 2021, 2564, 3205, 4042, 6410, 8084, 10105, 12820, 20210, 27563, 30127, 40420, 55126, 60254, 110252, 120508, 137815, 150635, 275630, 301270, 551260, 602540, 1295461, 2590922, 5181844, 6477305, 12954610, 25909220]

約数ペア:

[(1, 25909220), (2, 12954610), (4, 6477305), (5, 5181844), (10, 2590922), (20, 1295461), (43, 602540), (47, 551260), (86, 301270), (94, 275630), (172, 150635), (188, 137815), (215, 120508), (235, 110252), (430, 60254), (470, 55126), (641, 40420), (860, 30127), (940, 27563), (1282, 20210), (2021, 12820), (2564, 10105), (3205, 8084), (4042, 6410)]