30781600

素因数分解:

$2^5\times 5^2\times {\mathrm{109}}^1\times {\mathrm{353}}^1$

素因数の和:482

約数の個数: 72

約数和(自身を含む): 76049820

約数和(自身を除く): 45268220

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 109, 160, 200, 218, 353, 400, 436, 545, 706, 800, 872, 1090, 1412, 1744, 1765, 2180, 2725, 2824, 3488, 3530, 4360, 5450, 5648, 7060, 8720, 8825, 10900, 11296, 14120, 17440, 17650, 21800, 28240, 35300, 38477, 43600, 56480, 70600, 76954, 87200, 141200, 153908, 192385, 282400, 307816, 384770, 615632, 769540, 961925, 1231264, 1539080, 1923850, 3078160, 3847700, 6156320, 7695400, 15390800, 30781600]

約数ペア:

[(1, 30781600), (2, 15390800), (4, 7695400), (5, 6156320), (8, 3847700), (10, 3078160), (16, 1923850), (20, 1539080), (25, 1231264), (32, 961925), (40, 769540), (50, 615632), (80, 384770), (100, 307816), (109, 282400), (160, 192385), (200, 153908), (218, 141200), (353, 87200), (400, 76954), (436, 70600), (545, 56480), (706, 43600), (800, 38477), (872, 35300), (1090, 28240), (1412, 21800), (1744, 17650), (1765, 17440), (2180, 14120), (2725, 11296), (2824, 10900), (3488, 8825), (3530, 8720), (4360, 7060), (5450, 5648)]