20225260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{617}}^1$

素因数の和:786

約数の個数: 48

約数和(自身を含む): 46720800

約数和(自身を除く): 26495540

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 596, 617, 745, 1234, 1490, 1639, 2468, 2980, 3085, 3278, 6170, 6556, 6787, 8195, 12340, 13574, 16390, 27148, 32780, 33935, 67870, 91933, 135740, 183866, 367732, 459665, 919330, 1011263, 1838660, 2022526, 4045052, 5056315, 10112630, 20225260]

約数ペア:

[(1, 20225260), (2, 10112630), (4, 5056315), (5, 4045052), (10, 2022526), (11, 1838660), (20, 1011263), (22, 919330), (44, 459665), (55, 367732), (110, 183866), (149, 135740), (220, 91933), (298, 67870), (596, 33935), (617, 32780), (745, 27148), (1234, 16390), (1490, 13574), (1639, 12340), (2468, 8195), (2980, 6787), (3085, 6556), (3278, 6170)]