71969140

素因数分解:

$2^2\times 5^1\times {\mathrm{1811}}^1\times {\mathrm{1987}}^1$

素因数の和:3807

約数の個数: 24

約数和(自身を含む): 151294752

約数和(自身を除く): 79325612

約数列:

[1, 2, 4, 5, 10, 20, 1811, 1987, 3622, 3974, 7244, 7948, 9055, 9935, 18110, 19870, 36220, 39740, 3598457, 7196914, 14393828, 17992285, 35984570, 71969140]

約数ペア:

[(1, 71969140), (2, 35984570), (4, 17992285), (5, 14393828), (10, 7196914), (20, 3598457), (1811, 39740), (1987, 36220), (3622, 19870), (3974, 18110), (7244, 9935), (7948, 9055)]