71880016

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{345577}}^1$

素因数の和:345598

約数の個数: 20

約数和(自身を含む): 149980852

約数和(自身を除く): 78100836

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 345577, 691154, 1382308, 2764616, 4492501, 5529232, 8985002, 17970004, 35940008, 71880016]

約数ペア:

[(1, 71880016), (2, 35940008), (4, 17970004), (8, 8985002), (13, 5529232), (16, 4492501), (26, 2764616), (52, 1382308), (104, 691154), (208, 345577)]