28686760

素因数分解:

$2^3\times 5^1\times {\mathrm{127}}^1\times {\mathrm{5647}}^1$

素因数の和:5785

約数の個数: 32

約数和(自身を含む): 65064960

約数和(自身を除く): 36378200

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 127, 254, 508, 635, 1016, 1270, 2540, 5080, 5647, 11294, 22588, 28235, 45176, 56470, 112940, 225880, 717169, 1434338, 2868676, 3585845, 5737352, 7171690, 14343380, 28686760]

約数ペア:

[(1, 28686760), (2, 14343380), (4, 7171690), (5, 5737352), (8, 3585845), (10, 2868676), (20, 1434338), (40, 717169), (127, 225880), (254, 112940), (508, 56470), (635, 45176), (1016, 28235), (1270, 22588), (2540, 11294), (5080, 5647)]