81655664

素因数分解:

$2^4\times {\mathrm{79}}^1\times {\mathrm{64601}}^1$

素因数の和:64688

約数の個数: 20

約数和(自身を含む): 160212960

約数和(自身を除く): 78557296

約数列:

[1, 2, 4, 8, 16, 79, 158, 316, 632, 1264, 64601, 129202, 258404, 516808, 1033616, 5103479, 10206958, 20413916, 40827832, 81655664]

約数ペア:

[(1, 81655664), (2, 40827832), (4, 20413916), (8, 10206958), (16, 5103479), (79, 1033616), (158, 516808), (316, 258404), (632, 129202), (1264, 64601)]