205171170020

素因数分解:

$2^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{40870751}}^1$

素因数の和:40871011

約数の個数: 24

約数和(自身を含む): 432576039168

約数和(自身を除く): 227404869148

約数列:

[1, 2, 4, 5, 10, 20, 251, 502, 1004, 1255, 2510, 5020, 40870751, 81741502, 163483004, 204353755, 408707510, 817415020, 10258558501, 20517117002, 41034234004, 51292792505, 102585585010, 205171170020]

約数ペア:

[(1, 205171170020), (2, 102585585010), (4, 51292792505), (5, 41034234004), (10, 20517117002), (20, 10258558501), (251, 817415020), (502, 408707510), (1004, 204353755), (1255, 163483004), (2510, 81741502), (5020, 40870751)]