78947984

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{55441}}^1$

素因数の和:55538

約数の個数: 20

約数和(自身を含む): 154683180

約数和(自身を除く): 75735196

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 55441, 110882, 221764, 443528, 887056, 4934249, 9868498, 19736996, 39473992, 78947984]

約数ペア:

[(1, 78947984), (2, 39473992), (4, 19736996), (8, 9868498), (16, 4934249), (89, 887056), (178, 443528), (356, 221764), (712, 110882), (1424, 55441)]