7972840

素因数分解:

$2^3\times 5^1\times {\mathrm{199321}}^1$

素因数の和:199332

約数の個数: 16

約数和(自身を含む): 17938980

約数和(自身を除く): 9966140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199321, 398642, 797284, 996605, 1594568, 1993210, 3986420, 7972840]

約数ペア:

[(1, 7972840), (2, 3986420), (4, 1993210), (5, 1594568), (8, 996605), (10, 797284), (20, 398642), (40, 199321)]