28397360

素因数分解:

$2^4\times 5^1\times {\mathrm{137}}^1\times {\mathrm{2591}}^1$

素因数の和:2741

約数の個数: 40

約数和(自身を含む): 66531456

約数和(自身を除く): 38134096

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 137, 274, 548, 685, 1096, 1370, 2192, 2591, 2740, 5182, 5480, 10364, 10960, 12955, 20728, 25910, 41456, 51820, 103640, 207280, 354967, 709934, 1419868, 1774835, 2839736, 3549670, 5679472, 7099340, 14198680, 28397360]

約数ペア:

[(1, 28397360), (2, 14198680), (4, 7099340), (5, 5679472), (8, 3549670), (10, 2839736), (16, 1774835), (20, 1419868), (40, 709934), (80, 354967), (137, 207280), (274, 103640), (548, 51820), (685, 41456), (1096, 25910), (1370, 20728), (2192, 12955), (2591, 10960), (2740, 10364), (5182, 5480)]