131445280

素因数分解:

$2^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{7537}}^1$

素因数の和:7661

約数の個数: 48

約数和(自身を含む): 313430040

約数和(自身を除く): 181984760

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 109, 160, 218, 436, 545, 872, 1090, 1744, 2180, 3488, 4360, 7537, 8720, 15074, 17440, 30148, 37685, 60296, 75370, 120592, 150740, 241184, 301480, 602960, 821533, 1205920, 1643066, 3286132, 4107665, 6572264, 8215330, 13144528, 16430660, 26289056, 32861320, 65722640, 131445280]

約数ペア:

[(1, 131445280), (2, 65722640), (4, 32861320), (5, 26289056), (8, 16430660), (10, 13144528), (16, 8215330), (20, 6572264), (32, 4107665), (40, 3286132), (80, 1643066), (109, 1205920), (160, 821533), (218, 602960), (436, 301480), (545, 241184), (872, 150740), (1090, 120592), (1744, 75370), (2180, 60296), (3488, 37685), (4360, 30148), (7537, 17440), (8720, 15074)]