161489180

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{1153}}^1$

素因数の和:1358

約数の個数: 48

約数和(自身を含む): 348969600

約数和(自身を除く): 187480420

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 149, 188, 235, 298, 470, 596, 745, 940, 1153, 1490, 2306, 2980, 4612, 5765, 7003, 11530, 14006, 23060, 28012, 35015, 54191, 70030, 108382, 140060, 171797, 216764, 270955, 343594, 541910, 687188, 858985, 1083820, 1717970, 3435940, 8074459, 16148918, 32297836, 40372295, 80744590, 161489180]

約数ペア:

[(1, 161489180), (2, 80744590), (4, 40372295), (5, 32297836), (10, 16148918), (20, 8074459), (47, 3435940), (94, 1717970), (149, 1083820), (188, 858985), (235, 687188), (298, 541910), (470, 343594), (596, 270955), (745, 216764), (940, 171797), (1153, 140060), (1490, 108382), (2306, 70030), (2980, 54191), (4612, 35015), (5765, 28012), (7003, 23060), (11530, 14006)]