20121636380

素因数分解:

$2^2\times 5^1\times {\mathrm{1006081819}}^1$

素因数の和:1006081828

約数の個数: 12

約数和(自身を含む): 42255436440

約数和(自身を除く): 22133800060

約数列:

[1, 2, 4, 5, 10, 20, 1006081819, 2012163638, 4024327276, 5030409095, 10060818190, 20121636380]

約数ペア:

[(1, 20121636380), (2, 10060818190), (4, 5030409095), (5, 4024327276), (10, 2012163638), (20, 1006081819)]