80937160

素因数分解:

$2^3\times 5^1\times {\mathrm{71}}^1\times {\mathrm{28499}}^1$

素因数の和:28581

約数の個数: 32

約数和(自身を含む): 184680000

約数和(自身を除く): 103742840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 71, 142, 284, 355, 568, 710, 1420, 2840, 28499, 56998, 113996, 142495, 227992, 284990, 569980, 1139960, 2023429, 4046858, 8093716, 10117145, 16187432, 20234290, 40468580, 80937160]

約数ペア:

[(1, 80937160), (2, 40468580), (4, 20234290), (5, 16187432), (8, 10117145), (10, 8093716), (20, 4046858), (40, 2023429), (71, 1139960), (142, 569980), (284, 284990), (355, 227992), (568, 142495), (710, 113996), (1420, 56998), (2840, 28499)]