30705640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{109663}}^1$

素因数の和:109681

約数の個数: 32

約数和(自身を含む): 78958080

約数和(自身を除く): 48252440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 109663, 219326, 438652, 548315, 767641, 877304, 1096630, 1535282, 2193260, 3070564, 3838205, 4386520, 6141128, 7676410, 15352820, 30705640]

約数ペア:

[(1, 30705640), (2, 15352820), (4, 7676410), (5, 6141128), (7, 4386520), (8, 3838205), (10, 3070564), (14, 2193260), (20, 1535282), (28, 1096630), (35, 877304), (40, 767641), (56, 548315), (70, 438652), (140, 219326), (280, 109663)]