20213633560

素因数分解:

$2^3\times 5^1\times {\mathrm{505340839}}^1$

素因数の和:505340850

約数の個数: 16

約数和(自身を含む): 45480675600

約数和(自身を除く): 25267042040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 505340839, 1010681678, 2021363356, 2526704195, 4042726712, 5053408390, 10106816780, 20213633560]

約数ペア:

[(1, 20213633560), (2, 10106816780), (4, 5053408390), (5, 4042726712), (8, 2526704195), (10, 2021363356), (20, 1010681678), (40, 505340839)]