20802019930

素因数分解:

$2^1\times 5^1\times {\mathrm{31277}}^1\times {\mathrm{66509}}^1$

素因数の和:97793

約数の個数: 16

約数和(自身を含む): 37445396040

約数和(自身を除く): 16643376110

約数列:

[1, 2, 5, 10, 31277, 62554, 66509, 133018, 156385, 312770, 332545, 665090, 2080201993, 4160403986, 10401009965, 20802019930]

約数ペア:

[(1, 20802019930), (2, 10401009965), (5, 4160403986), (10, 2080201993), (31277, 665090), (62554, 332545), (66509, 312770), (133018, 156385)]