2010020720

素因数分解:

$2^4\times 5^1\times {\mathrm{25125259}}^1$

素因数の和:25125272

約数の個数: 20

約数和(自身を含む): 4673298360

約数和(自身を除く): 2663277640

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 25125259, 50250518, 100501036, 125626295, 201002072, 251252590, 402004144, 502505180, 1005010360, 2010020720]

約数ペア:

[(1, 2010020720), (2, 1005010360), (4, 502505180), (5, 402004144), (8, 251252590), (10, 201002072), (16, 125626295), (20, 100501036), (40, 50250518), (80, 25125259)]