201689320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{720319}}^1$

素因数の和:720337

約数の個数: 32

約数和(自身を含む): 518630400

約数和(自身を除く): 316941080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 720319, 1440638, 2881276, 3601595, 5042233, 5762552, 7203190, 10084466, 14406380, 20168932, 25211165, 28812760, 40337864, 50422330, 100844660, 201689320]

約数ペア:

[(1, 201689320), (2, 100844660), (4, 50422330), (5, 40337864), (7, 28812760), (8, 25211165), (10, 20168932), (14, 14406380), (20, 10084466), (28, 7203190), (35, 5762552), (40, 5042233), (56, 3601595), (70, 2881276), (140, 1440638), (280, 720319)]