20201840

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{3769}}^1$

素因数の和:3849

約数の個数: 40

約数和(自身を含む): 47682960

約数和(自身を除く): 27481120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 2680, 3769, 5360, 7538, 15076, 18845, 30152, 37690, 60304, 75380, 150760, 252523, 301520, 505046, 1010092, 1262615, 2020184, 2525230, 4040368, 5050460, 10100920, 20201840]

約数ペア:

[(1, 20201840), (2, 10100920), (4, 5050460), (5, 4040368), (8, 2525230), (10, 2020184), (16, 1262615), (20, 1010092), (40, 505046), (67, 301520), (80, 252523), (134, 150760), (268, 75380), (335, 60304), (536, 37690), (670, 30152), (1072, 18845), (1340, 15076), (2680, 7538), (3769, 5360)]