20123248540

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{743}}^1\times {\mathrm{33029}}^1$

素因数の和:33822

約数の個数: 48

約数和(自身を含む): 43349100480

約数和(自身を除く): 23225851940

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 743, 820, 1486, 2972, 3715, 7430, 14860, 30463, 33029, 60926, 66058, 121852, 132116, 152315, 165145, 304630, 330290, 609260, 660580, 1354189, 2708378, 5416756, 6770945, 13541890, 24540547, 27083780, 49081094, 98162188, 122702735, 245405470, 490810940, 1006162427, 2012324854, 4024649708, 5030812135, 10061624270, 20123248540]

約数ペア:

[(1, 20123248540), (2, 10061624270), (4, 5030812135), (5, 4024649708), (10, 2012324854), (20, 1006162427), (41, 490810940), (82, 245405470), (164, 122702735), (205, 98162188), (410, 49081094), (743, 27083780), (820, 24540547), (1486, 13541890), (2972, 6770945), (3715, 5416756), (7430, 2708378), (14860, 1354189), (30463, 660580), (33029, 609260), (60926, 330290), (66058, 304630), (121852, 165145), (132116, 152315)]