78282940

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{95467}}^1$

素因数の和:95517

約数の個数: 24

約数和(自身を含む): 168405552

約数和(自身を除く): 90122612

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 95467, 190934, 381868, 477335, 954670, 1909340, 3914147, 7828294, 15656588, 19570735, 39141470, 78282940]

約数ペア:

[(1, 78282940), (2, 39141470), (4, 19570735), (5, 15656588), (10, 7828294), (20, 3914147), (41, 1909340), (82, 954670), (164, 477335), (205, 381868), (410, 190934), (820, 95467)]