839609840

素因数分解:

$2^4\times 5^1\times {\mathrm{10495123}}^1$

素因数の和:10495136

約数の個数: 20

約数和(自身を含む): 1952093064

約数和(自身を除く): 1112483224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10495123, 20990246, 41980492, 52475615, 83960984, 104951230, 167921968, 209902460, 419804920, 839609840]

約数ペア:

[(1, 839609840), (2, 419804920), (4, 209902460), (5, 167921968), (8, 104951230), (10, 83960984), (16, 52475615), (20, 41980492), (40, 20990246), (80, 10495123)]