78872120

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{27011}}^1$

素因数の和:27095

約数の個数: 32

約数和(自身を含む): 179899920

約数和(自身を除く): 101027800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 27011, 54022, 108044, 135055, 216088, 270110, 540220, 1080440, 1971803, 3943606, 7887212, 9859015, 15774424, 19718030, 39436060, 78872120]

約数ペア:

[(1, 78872120), (2, 39436060), (4, 19718030), (5, 15774424), (8, 9859015), (10, 7887212), (20, 3943606), (40, 1971803), (73, 1080440), (146, 540220), (292, 270110), (365, 216088), (584, 135055), (730, 108044), (1460, 54022), (2920, 27011)]