261032100080

素因数分解:

$2^4\times 5^1\times {\mathrm{3262901251}}^1$

素因数の和:3262901264

約数の個数: 20

約数和(自身を含む): 606899632872

約数和(自身を除く): 345867532792

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3262901251, 6525802502, 13051605004, 16314506255, 26103210008, 32629012510, 52206420016, 65258025020, 130516050040, 261032100080]

約数ペア:

[(1, 261032100080), (2, 130516050040), (4, 65258025020), (5, 52206420016), (8, 32629012510), (10, 26103210008), (16, 16314506255), (20, 13051605004), (40, 6525802502), (80, 3262901251)]