7920760

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{2789}}^1$

素因数の和:2871

約数の個数: 32

約数和(自身を含む): 18079200

約数和(自身を除く): 10158440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2789, 2840, 5578, 11156, 13945, 22312, 27890, 55780, 111560, 198019, 396038, 792076, 990095, 1584152, 1980190, 3960380, 7920760]

約数ペア:

[(1, 7920760), (2, 3960380), (4, 1980190), (5, 1584152), (8, 990095), (10, 792076), (20, 396038), (40, 198019), (71, 111560), (142, 55780), (284, 27890), (355, 22312), (568, 13945), (710, 11156), (1420, 5578), (2789, 2840)]