16649618320

素因数分解:

$2^4\times 5^1\times {\mathrm{208120229}}^1$

素因数の和:208120242

約数の個数: 20

約数和(自身を含む): 38710362780

約数和(自身を除く): 22060744460

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 208120229, 416240458, 832480916, 1040601145, 1664961832, 2081202290, 3329923664, 4162404580, 8324809160, 16649618320]

約数ペア:

[(1, 16649618320), (2, 8324809160), (4, 4162404580), (5, 3329923664), (8, 2081202290), (10, 1664961832), (16, 1040601145), (20, 832480916), (40, 416240458), (80, 208120229)]