30249640

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^2\times {\mathrm{409}}^1$

素因数の和:506

約数の個数: 48

約数和(自身を含む): 69851700

約数和(自身を除く): 39602060

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 215, 344, 409, 430, 818, 860, 1636, 1720, 1849, 2045, 3272, 3698, 4090, 7396, 8180, 9245, 14792, 16360, 17587, 18490, 35174, 36980, 70348, 73960, 87935, 140696, 175870, 351740, 703480, 756241, 1512482, 3024964, 3781205, 6049928, 7562410, 15124820, 30249640]

約数ペア:

[(1, 30249640), (2, 15124820), (4, 7562410), (5, 6049928), (8, 3781205), (10, 3024964), (20, 1512482), (40, 756241), (43, 703480), (86, 351740), (172, 175870), (215, 140696), (344, 87935), (409, 73960), (430, 70348), (818, 36980), (860, 35174), (1636, 18490), (1720, 17587), (1849, 16360), (2045, 14792), (3272, 9245), (3698, 8180), (4090, 7396)]