8720720

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{1627}}^1$

素因数の和:1707

約数の個数: 40

約数和(自身を含む): 20590944

約数和(自身を除く): 11870224

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 80, 134, 268, 335, 536, 670, 1072, 1340, 1627, 2680, 3254, 5360, 6508, 8135, 13016, 16270, 26032, 32540, 65080, 109009, 130160, 218018, 436036, 545045, 872072, 1090090, 1744144, 2180180, 4360360, 8720720]

約数ペア:

[(1, 8720720), (2, 4360360), (4, 2180180), (5, 1744144), (8, 1090090), (10, 872072), (16, 545045), (20, 436036), (40, 218018), (67, 130160), (80, 109009), (134, 65080), (268, 32540), (335, 26032), (536, 16270), (670, 13016), (1072, 8135), (1340, 6508), (1627, 5360), (2680, 3254)]