51867040

素因数分解:

$2^5\times 5^1\times {\mathrm{179}}^1\times {\mathrm{1811}}^1$

素因数の和:2005

約数の個数: 48

約数和(自身を含む): 123288480

約数和(自身を除く): 71421440

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 179, 358, 716, 895, 1432, 1790, 1811, 2864, 3580, 3622, 5728, 7160, 7244, 9055, 14320, 14488, 18110, 28640, 28976, 36220, 57952, 72440, 144880, 289760, 324169, 648338, 1296676, 1620845, 2593352, 3241690, 5186704, 6483380, 10373408, 12966760, 25933520, 51867040]

約数ペア:

[(1, 51867040), (2, 25933520), (4, 12966760), (5, 10373408), (8, 6483380), (10, 5186704), (16, 3241690), (20, 2593352), (32, 1620845), (40, 1296676), (80, 648338), (160, 324169), (179, 289760), (358, 144880), (716, 72440), (895, 57952), (1432, 36220), (1790, 28976), (1811, 28640), (2864, 18110), (3580, 14488), (3622, 14320), (5728, 9055), (7160, 7244)]