81208528

素因数分解:

$2^4\times {\mathrm{83}}^1\times {\mathrm{61151}}^1$

素因数の和:61242

約数の個数: 20

約数和(自身を含む): 159239808

約数和(自身を除く): 78031280

約数列:

[1, 2, 4, 8, 16, 83, 166, 332, 664, 1328, 61151, 122302, 244604, 489208, 978416, 5075533, 10151066, 20302132, 40604264, 81208528]

約数ペア:

[(1, 81208528), (2, 40604264), (4, 20302132), (8, 10151066), (16, 5075533), (83, 978416), (166, 489208), (332, 244604), (664, 122302), (1328, 61151)]