2018382320

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1\times {\mathrm{1321}}^1$

素因数の和:1674

約数の個数: 80

約数和(自身を含む): 4780140480

約数和(自身を除く): 2761758160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 269, 284, 355, 538, 568, 710, 1076, 1136, 1321, 1345, 1420, 2152, 2642, 2690, 2840, 4304, 5284, 5380, 5680, 6605, 10568, 10760, 13210, 19099, 21136, 21520, 26420, 38198, 52840, 76396, 93791, 95495, 105680, 152792, 187582, 190990, 305584, 355349, 375164, 381980, 468955, 710698, 750328, 763960, 937910, 1421396, 1500656, 1527920, 1776745, 1875820, 2842792, 3553490, 3751640, 5685584, 7106980, 7503280, 14213960, 25229779, 28427920, 50459558, 100919116, 126148895, 201838232, 252297790, 403676464, 504595580, 1009191160, 2018382320]

約数ペア:

[(1, 2018382320), (2, 1009191160), (4, 504595580), (5, 403676464), (8, 252297790), (10, 201838232), (16, 126148895), (20, 100919116), (40, 50459558), (71, 28427920), (80, 25229779), (142, 14213960), (269, 7503280), (284, 7106980), (355, 5685584), (538, 3751640), (568, 3553490), (710, 2842792), (1076, 1875820), (1136, 1776745), (1321, 1527920), (1345, 1500656), (1420, 1421396), (2152, 937910), (2642, 763960), (2690, 750328), (2840, 710698), (4304, 468955), (5284, 381980), (5380, 375164), (5680, 355349), (6605, 305584), (10568, 190990), (10760, 187582), (13210, 152792), (19099, 105680), (21136, 95495), (21520, 93791), (26420, 76396), (38198, 52840)]