168889780

素因数分解:

$2^2\times 5^1\times {\mathrm{1249}}^1\times {\mathrm{6761}}^1$

素因数の和:8019

約数の個数: 24

約数和(自身を含む): 355005000

約数和(自身を除く): 186115220

約数列:

[1, 2, 4, 5, 10, 20, 1249, 2498, 4996, 6245, 6761, 12490, 13522, 24980, 27044, 33805, 67610, 135220, 8444489, 16888978, 33777956, 42222445, 84444890, 168889780]

約数ペア:

[(1, 168889780), (2, 84444890), (4, 42222445), (5, 33777956), (10, 16888978), (20, 8444489), (1249, 135220), (2498, 67610), (4996, 33805), (6245, 27044), (6761, 24980), (12490, 13522)]