9842120

素因数分解:

$2^3\times 5^1\times {\mathrm{197}}^1\times {\mathrm{1249}}^1$

素因数の和:1457

約数の個数: 32

約数和(自身を含む): 22275000

約数和(自身を除く): 12432880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 197, 394, 788, 985, 1249, 1576, 1970, 2498, 3940, 4996, 6245, 7880, 9992, 12490, 24980, 49960, 246053, 492106, 984212, 1230265, 1968424, 2460530, 4921060, 9842120]

約数ペア:

[(1, 9842120), (2, 4921060), (4, 2460530), (5, 1968424), (8, 1230265), (10, 984212), (20, 492106), (40, 246053), (197, 49960), (394, 24980), (788, 12490), (985, 9992), (1249, 7880), (1576, 6245), (1970, 4996), (2498, 3940)]