28122440

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{6961}}^1$

素因数の和:7073

約数の個数: 32

約数和(自身を含む): 63911160

約数和(自身を除く): 35788720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 2020, 4040, 6961, 13922, 27844, 34805, 55688, 69610, 139220, 278440, 703061, 1406122, 2812244, 3515305, 5624488, 7030610, 14061220, 28122440]

約数ペア:

[(1, 28122440), (2, 14061220), (4, 7030610), (5, 5624488), (8, 3515305), (10, 2812244), (20, 1406122), (40, 703061), (101, 278440), (202, 139220), (404, 69610), (505, 55688), (808, 34805), (1010, 27844), (2020, 13922), (4040, 6961)]