78037780

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{49391}}^1$

素因数の和:49479

約数の個数: 24

約数和(自身を含む): 165957120

約数和(自身を除く): 87919340

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 49391, 98782, 197564, 246955, 493910, 987820, 3901889, 7803778, 15607556, 19509445, 39018890, 78037780]

約数ペア:

[(1, 78037780), (2, 39018890), (4, 19509445), (5, 15607556), (10, 7803778), (20, 3901889), (79, 987820), (158, 493910), (316, 246955), (395, 197564), (790, 98782), (1580, 49391)]