78556820

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{95801}}^1$

素因数の和:95851

約数の個数: 24

約数和(自身を含む): 168994728

約数和(自身を除く): 90437908

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 95801, 191602, 383204, 479005, 958010, 1916020, 3927841, 7855682, 15711364, 19639205, 39278410, 78556820]

約数ペア:

[(1, 78556820), (2, 39278410), (4, 19639205), (5, 15711364), (10, 7855682), (20, 3927841), (41, 1916020), (82, 958010), (164, 479005), (205, 383204), (410, 191602), (820, 95801)]