66872860

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{31249}}^1$

素因数の和:31365

約数の個数: 24

約数和(自身を含む): 141750000

約数和(自身を除く): 74877140

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 31249, 62498, 124996, 156245, 312490, 624980, 3343643, 6687286, 13374572, 16718215, 33436430, 66872860]

約数ペア:

[(1, 66872860), (2, 33436430), (4, 16718215), (5, 13374572), (10, 6687286), (20, 3343643), (107, 624980), (214, 312490), (428, 156245), (535, 124996), (1070, 62498), (2140, 31249)]