12949940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20887}}^1$

素因数の和:20927

約数の個数: 24

約数和(自身を含む): 28073472

約数和(自身を除く): 15123532

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 20887, 41774, 83548, 104435, 208870, 417740, 647497, 1294994, 2589988, 3237485, 6474970, 12949940]

約数ペア:

[(1, 12949940), (2, 6474970), (4, 3237485), (5, 2589988), (10, 1294994), (20, 647497), (31, 417740), (62, 208870), (124, 104435), (155, 83548), (310, 41774), (620, 20887)]