81991265

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{227}}^1$

素因数の和:361

約数の個数: 32

約数和(自身を含む): 106375680

約数和(自身を除く): 24384415

約数列:

[1, 5, 29, 47, 53, 145, 227, 235, 265, 1135, 1363, 1537, 2491, 6583, 6815, 7685, 10669, 12031, 12455, 32915, 53345, 60155, 72239, 309401, 348899, 361195, 565457, 1547005, 1744495, 2827285, 16398253, 81991265]

約数ペア:

[(1, 81991265), (5, 16398253), (29, 2827285), (47, 1744495), (53, 1547005), (145, 565457), (227, 361195), (235, 348899), (265, 309401), (1135, 72239), (1363, 60155), (1537, 53345), (2491, 32915), (6583, 12455), (6815, 12031), (7685, 10669)]