218363540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{266297}}^1$

素因数の和:266347

約数の個数: 24

約数和(自身を含む): 469749672

約数和(自身を除く): 251386132

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 266297, 532594, 1065188, 1331485, 2662970, 5325940, 10918177, 21836354, 43672708, 54590885, 109181770, 218363540]

約数ペア:

[(1, 218363540), (2, 109181770), (4, 54590885), (5, 43672708), (10, 21836354), (20, 10918177), (41, 5325940), (82, 2662970), (164, 1331485), (205, 1065188), (410, 532594), (820, 266297)]