78564688

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{213491}}^1$

素因数の和:213522

約数の個数: 20

約数和(自身を含む): 158838048

約数和(自身を除く): 80273360

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 213491, 426982, 853964, 1707928, 3415856, 4910293, 9820586, 19641172, 39282344, 78564688]

約数ペア:

[(1, 78564688), (2, 39282344), (4, 19641172), (8, 9820586), (16, 4910293), (23, 3415856), (46, 1707928), (92, 853964), (184, 426982), (368, 213491)]