18824620

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{3499}}^1$

素因数の和:3777

約数の個数: 24

約数和(自身を含む): 39690000

約数和(自身を除く): 20865380

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 3499, 5380, 6998, 13996, 17495, 34990, 69980, 941231, 1882462, 3764924, 4706155, 9412310, 18824620]

約数ペア:

[(1, 18824620), (2, 9412310), (4, 4706155), (5, 3764924), (10, 1882462), (20, 941231), (269, 69980), (538, 34990), (1076, 17495), (1345, 13996), (2690, 6998), (3499, 5380)]