20120880280

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{7084817}}^1$

素因数の和:7084899

約数の個数: 32

約数和(自身を含む): 45909620640

約数和(自身を除く): 25788740360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 7084817, 14169634, 28339268, 35424085, 56678536, 70848170, 141696340, 283392680, 503022007, 1006044014, 2012088028, 2515110035, 4024176056, 5030220070, 10060440140, 20120880280]

約数ペア:

[(1, 20120880280), (2, 10060440140), (4, 5030220070), (5, 4024176056), (8, 2515110035), (10, 2012088028), (20, 1006044014), (40, 503022007), (71, 283392680), (142, 141696340), (284, 70848170), (355, 56678536), (568, 35424085), (710, 28339268), (1420, 14169634), (2840, 7084817)]