2080480040

素因数分解:

$2^3\times 5^1\times {\mathrm{52012001}}^1$

素因数の和:52012012

約数の個数: 16

約数和(自身を含む): 4681080180

約数和(自身を除く): 2600600140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 52012001, 104024002, 208048004, 260060005, 416096008, 520120010, 1040240020, 2080480040]

約数ペア:

[(1, 2080480040), (2, 1040240020), (4, 520120010), (5, 416096008), (8, 260060005), (10, 208048004), (20, 104024002), (40, 52012001)]