12808180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{8317}}^1$

素因数の和:8344

約数の個数: 48

約数和(自身を含む): 33538176

約数和(自身を除く): 20729996

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 8317, 16634, 33268, 41585, 58219, 83170, 91487, 116438, 166340, 182974, 232876, 291095, 365948, 457435, 582190, 640409, 914870, 1164380, 1280818, 1829740, 2561636, 3202045, 6404090, 12808180]

約数ペア:

[(1, 12808180), (2, 6404090), (4, 3202045), (5, 2561636), (7, 1829740), (10, 1280818), (11, 1164380), (14, 914870), (20, 640409), (22, 582190), (28, 457435), (35, 365948), (44, 291095), (55, 232876), (70, 182974), (77, 166340), (110, 116438), (140, 91487), (154, 83170), (220, 58219), (308, 41585), (385, 33268), (770, 16634), (1540, 8317)]