218006860

素因数分解:

$2^2\times 5^1\times {\mathrm{887}}^1\times {\mathrm{12289}}^1$

素因数の和:13185

約数の個数: 24

約数和(自身を含む): 458367840

約数和(自身を除く): 240360980

約数列:

[1, 2, 4, 5, 10, 20, 887, 1774, 3548, 4435, 8870, 12289, 17740, 24578, 49156, 61445, 122890, 245780, 10900343, 21800686, 43601372, 54501715, 109003430, 218006860]

約数ペア:

[(1, 218006860), (2, 109003430), (4, 54501715), (5, 43601372), (10, 21800686), (20, 10900343), (887, 245780), (1774, 122890), (3548, 61445), (4435, 49156), (8870, 24578), (12289, 17740)]