201456820

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{141871}}^1$

素因数の和:141951

約数の個数: 24

約数和(自身を含む): 429020928

約数和(自身を除く): 227564108

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 141871, 283742, 567484, 709355, 1418710, 2837420, 10072841, 20145682, 40291364, 50364205, 100728410, 201456820]

約数ペア:

[(1, 201456820), (2, 100728410), (4, 50364205), (5, 40291364), (10, 20145682), (20, 10072841), (71, 2837420), (142, 1418710), (284, 709355), (355, 567484), (710, 283742), (1420, 141871)]