201556280

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{18191}}^1$

素因数の和:18479

約数の個数: 32

約数和(自身を含む): 455163840

約数和(自身を除く): 253607560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 2216, 2770, 5540, 11080, 18191, 36382, 72764, 90955, 145528, 181910, 363820, 727640, 5038907, 10077814, 20155628, 25194535, 40311256, 50389070, 100778140, 201556280]

約数ペア:

[(1, 201556280), (2, 100778140), (4, 50389070), (5, 40311256), (8, 25194535), (10, 20155628), (20, 10077814), (40, 5038907), (277, 727640), (554, 363820), (1108, 181910), (1385, 145528), (2216, 90955), (2770, 72764), (5540, 36382), (11080, 18191)]