64802740

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{53117}}^1$

素因数の和:53187

約数の個数: 24

約数和(自身を含む): 138319272

約数和(自身を除く): 73516532

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 53117, 106234, 212468, 265585, 531170, 1062340, 3240137, 6480274, 12960548, 16200685, 32401370, 64802740]

約数ペア:

[(1, 64802740), (2, 32401370), (4, 16200685), (5, 12960548), (10, 6480274), (20, 3240137), (61, 1062340), (122, 531170), (244, 265585), (305, 212468), (610, 106234), (1220, 53117)]