66925456

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{321757}}^1$

素因数の和:321778

約数の個数: 20

約数和(自身を含む): 139642972

約数和(自身を除く): 72717516

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 321757, 643514, 1287028, 2574056, 4182841, 5148112, 8365682, 16731364, 33462728, 66925456]

約数ペア:

[(1, 66925456), (2, 33462728), (4, 16731364), (8, 8365682), (13, 5148112), (16, 4182841), (26, 2574056), (52, 1287028), (104, 643514), (208, 321757)]