12619540

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{8887}}^1$

素因数の和:8967

約数の個数: 24

約数和(自身を含む): 26877312

約数和(自身を除く): 14257772

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 8887, 17774, 35548, 44435, 88870, 177740, 630977, 1261954, 2523908, 3154885, 6309770, 12619540]

約数ペア:

[(1, 12619540), (2, 6309770), (4, 3154885), (5, 2523908), (10, 1261954), (20, 630977), (71, 177740), (142, 88870), (284, 44435), (355, 35548), (710, 17774), (1420, 8887)]