844360

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{101}}^1$

素因数の和:142

約数の個数: 64

約数和(自身を含む): 2203200

約数和(自身を除く): 1358840

約数列:

[1, 2, 4, 5, 8, 10, 11, 19, 20, 22, 38, 40, 44, 55, 76, 88, 95, 101, 110, 152, 190, 202, 209, 220, 380, 404, 418, 440, 505, 760, 808, 836, 1010, 1045, 1111, 1672, 1919, 2020, 2090, 2222, 3838, 4040, 4180, 4444, 5555, 7676, 8360, 8888, 9595, 11110, 15352, 19190, 21109, 22220, 38380, 42218, 44440, 76760, 84436, 105545, 168872, 211090, 422180, 844360]

約数ペア:

[(1, 844360), (2, 422180), (4, 211090), (5, 168872), (8, 105545), (10, 84436), (11, 76760), (19, 44440), (20, 42218), (22, 38380), (38, 22220), (40, 21109), (44, 19190), (55, 15352), (76, 11110), (88, 9595), (95, 8888), (101, 8360), (110, 7676), (152, 5555), (190, 4444), (202, 4180), (209, 4040), (220, 3838), (380, 2222), (404, 2090), (418, 2020), (440, 1919), (505, 1672), (760, 1111), (808, 1045), (836, 1010)]