81798612

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{20719}}^1$

素因数の和:20780

約数の個数: 48

約数和(自身を含む): 222781440

約数和(自身を除く): 140982828

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 47, 84, 94, 141, 188, 282, 329, 564, 658, 987, 1316, 1974, 3948, 20719, 41438, 62157, 82876, 124314, 145033, 248628, 290066, 435099, 580132, 870198, 973793, 1740396, 1947586, 2921379, 3895172, 5842758, 6816551, 11685516, 13633102, 20449653, 27266204, 40899306, 81798612]

約数ペア:

[(1, 81798612), (2, 40899306), (3, 27266204), (4, 20449653), (6, 13633102), (7, 11685516), (12, 6816551), (14, 5842758), (21, 3895172), (28, 2921379), (42, 1947586), (47, 1740396), (84, 973793), (94, 870198), (141, 580132), (188, 435099), (282, 290066), (329, 248628), (564, 145033), (658, 124314), (987, 82876), (1316, 62157), (1974, 41438), (3948, 20719)]