51665780

素因数分解:

$2^2\times 5^1\times {\mathrm{61}}^1\times {\mathrm{42349}}^1$

素因数の和:42419

約数の個数: 24

約数和(自身を含む): 110279400

約数和(自身を除く): 58613620

約数列:

[1, 2, 4, 5, 10, 20, 61, 122, 244, 305, 610, 1220, 42349, 84698, 169396, 211745, 423490, 846980, 2583289, 5166578, 10333156, 12916445, 25832890, 51665780]

約数ペア:

[(1, 51665780), (2, 25832890), (4, 12916445), (5, 10333156), (10, 5166578), (20, 2583289), (61, 846980), (122, 423490), (244, 211745), (305, 169396), (610, 84698), (1220, 42349)]