1087720

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{383}}^1$

素因数の和:465

約数の個数: 32

約数和(自身を含む): 2488320

約数和(自身を除く): 1400600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 383, 568, 710, 766, 1420, 1532, 1915, 2840, 3064, 3830, 7660, 15320, 27193, 54386, 108772, 135965, 217544, 271930, 543860, 1087720]

約数ペア:

[(1, 1087720), (2, 543860), (4, 271930), (5, 217544), (8, 135965), (10, 108772), (20, 54386), (40, 27193), (71, 15320), (142, 7660), (284, 3830), (355, 3064), (383, 2840), (568, 1915), (710, 1532), (766, 1420)]