90112220

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{2749}}^1$

素因数の和:2918

約数の個数: 48

約数和(自身を含む): 207900000

約数和(自身を除く): 117787780

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 149, 220, 298, 596, 745, 1490, 1639, 2749, 2980, 3278, 5498, 6556, 8195, 10996, 13745, 16390, 27490, 30239, 32780, 54980, 60478, 120956, 151195, 302390, 409601, 604780, 819202, 1638404, 2048005, 4096010, 4505611, 8192020, 9011222, 18022444, 22528055, 45056110, 90112220]

約数ペア:

[(1, 90112220), (2, 45056110), (4, 22528055), (5, 18022444), (10, 9011222), (11, 8192020), (20, 4505611), (22, 4096010), (44, 2048005), (55, 1638404), (110, 819202), (149, 604780), (220, 409601), (298, 302390), (596, 151195), (745, 120956), (1490, 60478), (1639, 54980), (2749, 32780), (2980, 30239), (3278, 27490), (5498, 16390), (6556, 13745), (8195, 10996)]