9999896680

素因数分解:

$2^3\times 5^1\times {\mathrm{191}}^1\times {\mathrm{1308887}}^1$

素因数の和:1309089

約数の個数: 32

約数和(自身を含む): 22617584640

約数和(自身を除く): 12617687960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 191, 382, 764, 955, 1528, 1910, 3820, 7640, 1308887, 2617774, 5235548, 6544435, 10471096, 13088870, 26177740, 52355480, 249997417, 499994834, 999989668, 1249987085, 1999979336, 2499974170, 4999948340, 9999896680]

約数ペア:

[(1, 9999896680), (2, 4999948340), (4, 2499974170), (5, 1999979336), (8, 1249987085), (10, 999989668), (20, 499994834), (40, 249997417), (191, 52355480), (382, 26177740), (764, 13088870), (955, 10471096), (1528, 6544435), (1910, 5235548), (3820, 2617774), (7640, 1308887)]