10021220

素因数分解:

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

素因数の和:173

約数の個数: 72

約数和(自身を含む): 23930424

約数和(自身を除く): 13909204

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 41, 44, 55, 82, 101, 110, 121, 164, 202, 205, 220, 242, 404, 410, 451, 484, 505, 605, 820, 902, 1010, 1111, 1210, 1804, 2020, 2222, 2255, 2420, 4141, 4444, 4510, 4961, 5555, 8282, 9020, 9922, 11110, 12221, 16564, 19844, 20705, 22220, 24442, 24805, 41410, 45551, 48884, 49610, 61105, 82820, 91102, 99220, 122210, 182204, 227755, 244420, 455510, 501061, 911020, 1002122, 2004244, 2505305, 5010610, 10021220]

約数ペア:

[(1, 10021220), (2, 5010610), (4, 2505305), (5, 2004244), (10, 1002122), (11, 911020), (20, 501061), (22, 455510), (41, 244420), (44, 227755), (55, 182204), (82, 122210), (101, 99220), (110, 91102), (121, 82820), (164, 61105), (202, 49610), (205, 48884), (220, 45551), (242, 41410), (404, 24805), (410, 24442), (451, 22220), (484, 20705), (505, 19844), (605, 16564), (820, 12221), (902, 11110), (1010, 9922), (1111, 9020), (1210, 8282), (1804, 5555), (2020, 4961), (2222, 4510), (2255, 4444), (2420, 4141)]