1721140

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{1831}}^1$

素因数の和:1887

約数の個数: 24

約数和(自身を含む): 3693312

約数和(自身を除く): 1972172

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 1831, 3662, 7324, 9155, 18310, 36620, 86057, 172114, 344228, 430285, 860570, 1721140]

約数ペア:

[(1, 1721140), (2, 860570), (4, 430285), (5, 344228), (10, 172114), (20, 86057), (47, 36620), (94, 18310), (188, 9155), (235, 7324), (470, 3662), (940, 1831)]