20248720

素因数分解:

$2^4\times 5^1\times {\mathrm{253109}}^1$

素因数の和:253122

約数の個数: 20

約数和(自身を含む): 47078460

約数和(自身を除く): 26829740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 253109, 506218, 1012436, 1265545, 2024872, 2531090, 4049744, 5062180, 10124360, 20248720]

約数ペア:

[(1, 20248720), (2, 10124360), (4, 5062180), (5, 4049744), (8, 2531090), (10, 2024872), (16, 1265545), (20, 1012436), (40, 506218), (80, 253109)]