55487920

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{9769}}^1$

素因数の和:9853

約数の個数: 40

約数和(自身を含む): 130839840

約数和(自身を除く): 75351920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5680, 9769, 19538, 39076, 48845, 78152, 97690, 156304, 195380, 390760, 693599, 781520, 1387198, 2774396, 3467995, 5548792, 6935990, 11097584, 13871980, 27743960, 55487920]

約数ペア:

[(1, 55487920), (2, 27743960), (4, 13871980), (5, 11097584), (8, 6935990), (10, 5548792), (16, 3467995), (20, 2774396), (40, 1387198), (71, 781520), (80, 693599), (142, 390760), (284, 195380), (355, 156304), (568, 97690), (710, 78152), (1136, 48845), (1420, 39076), (2840, 19538), (5680, 9769)]