78889556

素因数分解:

$2^2\times {\mathrm{409}}^1\times {\mathrm{48221}}^1$

素因数の和:48634

約数の個数: 12

約数和(自身を含む): 138397140

約数和(自身を除く): 59507584

約数列:

[1, 2, 4, 409, 818, 1636, 48221, 96442, 192884, 19722389, 39444778, 78889556]

約数ペア:

[(1, 78889556), (2, 39444778), (4, 19722389), (409, 192884), (818, 96442), (1636, 48221)]