19445600

素因数分解:

$2^5\times 5^2\times {\mathrm{109}}^1\times {\mathrm{223}}^1$

素因数の和:352

約数の個数: 72

約数和(自身を含む): 48121920

約数和(自身を除く): 28676320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 109, 160, 200, 218, 223, 400, 436, 446, 545, 800, 872, 892, 1090, 1115, 1744, 1784, 2180, 2230, 2725, 3488, 3568, 4360, 4460, 5450, 5575, 7136, 8720, 8920, 10900, 11150, 17440, 17840, 21800, 22300, 24307, 35680, 43600, 44600, 48614, 87200, 89200, 97228, 121535, 178400, 194456, 243070, 388912, 486140, 607675, 777824, 972280, 1215350, 1944560, 2430700, 3889120, 4861400, 9722800, 19445600]

約数ペア:

[(1, 19445600), (2, 9722800), (4, 4861400), (5, 3889120), (8, 2430700), (10, 1944560), (16, 1215350), (20, 972280), (25, 777824), (32, 607675), (40, 486140), (50, 388912), (80, 243070), (100, 194456), (109, 178400), (160, 121535), (200, 97228), (218, 89200), (223, 87200), (400, 48614), (436, 44600), (446, 43600), (545, 35680), (800, 24307), (872, 22300), (892, 21800), (1090, 17840), (1115, 17440), (1744, 11150), (1784, 10900), (2180, 8920), (2230, 8720), (2725, 7136), (3488, 5575), (3568, 5450), (4360, 4460)]