8721080

素因数分解:

$2^3\times 5^1\times {\mathrm{263}}^1\times {\mathrm{829}}^1$

素因数の和:1103

約数の個数: 32

約数和(自身を含む): 19720800

約数和(自身を除く): 10999720

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 263, 526, 829, 1052, 1315, 1658, 2104, 2630, 3316, 4145, 5260, 6632, 8290, 10520, 16580, 33160, 218027, 436054, 872108, 1090135, 1744216, 2180270, 4360540, 8721080]

約数ペア:

[(1, 8721080), (2, 4360540), (4, 2180270), (5, 1744216), (8, 1090135), (10, 872108), (20, 436054), (40, 218027), (263, 33160), (526, 16580), (829, 10520), (1052, 8290), (1315, 6632), (1658, 5260), (2104, 4145), (2630, 3316)]