80491216

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{386977}}^1$

素因数の和:386998

約数の個数: 20

約数和(自身を含む): 167948452

約数和(自身を除く): 87457236

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 386977, 773954, 1547908, 3095816, 5030701, 6191632, 10061402, 20122804, 40245608, 80491216]

約数ペア:

[(1, 80491216), (2, 40245608), (4, 20122804), (8, 10061402), (13, 6191632), (16, 5030701), (26, 3095816), (52, 1547908), (104, 773954), (208, 386977)]