20123687960

素因数分解:

$2^3\times 5^1\times {\mathrm{503092199}}^1$

素因数の和:503092210

約数の個数: 16

約数和(自身を含む): 45278298000

約数和(自身を除く): 25154610040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 503092199, 1006184398, 2012368796, 2515460995, 4024737592, 5030921990, 10061843980, 20123687960]

約数ペア:

[(1, 20123687960), (2, 10061843980), (4, 5030921990), (5, 4024737592), (8, 2515460995), (10, 2012368796), (20, 1006184398), (40, 503092199)]