1991231140

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{2118331}}^1$

素因数の和:2118387

約数の個数: 24

約数和(自身を含む): 4270557312

約数和(自身を除く): 2279326172

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 2118331, 4236662, 8473324, 10591655, 21183310, 42366620, 99561557, 199123114, 398246228, 497807785, 995615570, 1991231140]

約数ペア:

[(1, 1991231140), (2, 995615570), (4, 497807785), (5, 398246228), (10, 199123114), (20, 99561557), (47, 42366620), (94, 21183310), (188, 10591655), (235, 8473324), (470, 4236662), (940, 2118331)]