210320980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{256489}}^1$

素因数の和:256539

約数の個数: 24

約数和(自身を含む): 452448360

約数和(自身を除く): 242127380

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 256489, 512978, 1025956, 1282445, 2564890, 5129780, 10516049, 21032098, 42064196, 52580245, 105160490, 210320980]

約数ペア:

[(1, 210320980), (2, 105160490), (4, 52580245), (5, 42064196), (10, 21032098), (20, 10516049), (41, 5129780), (82, 2564890), (164, 1282445), (205, 1025956), (410, 512978), (820, 256489)]