911020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1$

素因数の和:162

約数の個数: 48

約数和(自身を含む): 2159136

約数和(自身を除く): 1248116

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 101, 110, 164, 202, 205, 220, 404, 410, 451, 505, 820, 902, 1010, 1111, 1804, 2020, 2222, 2255, 4141, 4444, 4510, 5555, 8282, 9020, 11110, 16564, 20705, 22220, 41410, 45551, 82820, 91102, 182204, 227755, 455510, 911020]

約数ペア:

[(1, 911020), (2, 455510), (4, 227755), (5, 182204), (10, 91102), (11, 82820), (20, 45551), (22, 41410), (41, 22220), (44, 20705), (55, 16564), (82, 11110), (101, 9020), (110, 8282), (164, 5555), (202, 4510), (205, 4444), (220, 4141), (404, 2255), (410, 2222), (451, 2020), (505, 1804), (820, 1111), (902, 1010)]