30399620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79999}}^1$

素因数の和:80027

約数の個数: 24

約数和(自身を含む): 67200000

約数和(自身を除く): 36800380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 79999, 159998, 319996, 399995, 799990, 1519981, 1599980, 3039962, 6079924, 7599905, 15199810, 30399620]

約数ペア:

[(1, 30399620), (2, 15199810), (4, 7599905), (5, 6079924), (10, 3039962), (19, 1599980), (20, 1519981), (38, 799990), (76, 399995), (95, 319996), (190, 159998), (380, 79999)]