20079893560

素因数分解:

$2^3\times 5^1\times {\mathrm{501997339}}^1$

素因数の和:501997350

約数の個数: 16

約数和(自身を含む): 45179760600

約数和(自身を除く): 25099867040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 501997339, 1003994678, 2007989356, 2509986695, 4015978712, 5019973390, 10039946780, 20079893560]

約数ペア:

[(1, 20079893560), (2, 10039946780), (4, 5019973390), (5, 4015978712), (8, 2509986695), (10, 2007989356), (20, 1003994678), (40, 501997339)]