18821440

素因数分解:

$2^6\times 5^1\times {\mathrm{11}}^1\times {\mathrm{5347}}^1$

素因数の和:5375

約数の個数: 56

約数和(自身を含む): 48902112

約数和(自身を除く): 30080672

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 160, 176, 220, 320, 352, 440, 704, 880, 1760, 3520, 5347, 10694, 21388, 26735, 42776, 53470, 58817, 85552, 106940, 117634, 171104, 213880, 235268, 294085, 342208, 427760, 470536, 588170, 855520, 941072, 1176340, 1711040, 1882144, 2352680, 3764288, 4705360, 9410720, 18821440]

約数ペア:

[(1, 18821440), (2, 9410720), (4, 4705360), (5, 3764288), (8, 2352680), (10, 1882144), (11, 1711040), (16, 1176340), (20, 941072), (22, 855520), (32, 588170), (40, 470536), (44, 427760), (55, 342208), (64, 294085), (80, 235268), (88, 213880), (110, 171104), (160, 117634), (176, 106940), (220, 85552), (320, 58817), (352, 53470), (440, 42776), (704, 26735), (880, 21388), (1760, 10694), (3520, 5347)]