2005146820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2445301}}^1$

素因数の和:2445351

約数の個数: 24

約数和(自身を含む): 4313512728

約数和(自身を除く): 2308365908

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2445301, 4890602, 9781204, 12226505, 24453010, 48906020, 100257341, 200514682, 401029364, 501286705, 1002573410, 2005146820]

約数ペア:

[(1, 2005146820), (2, 1002573410), (4, 501286705), (5, 401029364), (10, 200514682), (20, 100257341), (41, 48906020), (82, 24453010), (164, 12226505), (205, 9781204), (410, 4890602), (820, 2445301)]