81924400

素因数分解:

$2^4\times 5^2\times {\mathrm{109}}^1\times {\mathrm{1879}}^1$

素因数の和:2006

約数の個数: 60

約数和(自身を含む): 198734800

約数和(自身を除く): 116810400

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 109, 200, 218, 400, 436, 545, 872, 1090, 1744, 1879, 2180, 2725, 3758, 4360, 5450, 7516, 8720, 9395, 10900, 15032, 18790, 21800, 30064, 37580, 43600, 46975, 75160, 93950, 150320, 187900, 204811, 375800, 409622, 751600, 819244, 1024055, 1638488, 2048110, 3276976, 4096220, 5120275, 8192440, 10240550, 16384880, 20481100, 40962200, 81924400]

約数ペア:

[(1, 81924400), (2, 40962200), (4, 20481100), (5, 16384880), (8, 10240550), (10, 8192440), (16, 5120275), (20, 4096220), (25, 3276976), (40, 2048110), (50, 1638488), (80, 1024055), (100, 819244), (109, 751600), (200, 409622), (218, 375800), (400, 204811), (436, 187900), (545, 150320), (872, 93950), (1090, 75160), (1744, 46975), (1879, 43600), (2180, 37580), (2725, 30064), (3758, 21800), (4360, 18790), (5450, 15032), (7516, 10900), (8720, 9395)]