138932780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{26821}}^1$

素因数の和:26874

約数の個数: 48

約数和(自身を含む): 342463296

約数和(自身を除く): 203530516

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 37, 70, 74, 140, 148, 185, 259, 370, 518, 740, 1036, 1295, 2590, 5180, 26821, 53642, 107284, 134105, 187747, 268210, 375494, 536420, 750988, 938735, 992377, 1877470, 1984754, 3754940, 3969508, 4961885, 6946639, 9923770, 13893278, 19847540, 27786556, 34733195, 69466390, 138932780]

約数ペア:

[(1, 138932780), (2, 69466390), (4, 34733195), (5, 27786556), (7, 19847540), (10, 13893278), (14, 9923770), (20, 6946639), (28, 4961885), (35, 3969508), (37, 3754940), (70, 1984754), (74, 1877470), (140, 992377), (148, 938735), (185, 750988), (259, 536420), (370, 375494), (518, 268210), (740, 187747), (1036, 134105), (1295, 107284), (2590, 53642), (5180, 26821)]