2187804560

素因数分解:

$2^4\times 5^1\times {\mathrm{27347557}}^1$

素因数の和:27347570

約数の個数: 20

約数和(自身を含む): 5086645788

約数和(自身を除く): 2898841228

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 27347557, 54695114, 109390228, 136737785, 218780456, 273475570, 437560912, 546951140, 1093902280, 2187804560]

約数ペア:

[(1, 2187804560), (2, 1093902280), (4, 546951140), (5, 437560912), (8, 273475570), (10, 218780456), (16, 136737785), (20, 109390228), (40, 54695114), (80, 27347557)]