31335820

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{439}}^1$

素因数の和:574

約数の個数: 48

約数和(自身を含む): 68302080

約数和(自身を除く): 36966260

約数列:

[1, 2, 4, 5, 10, 20, 43, 83, 86, 166, 172, 215, 332, 415, 430, 439, 830, 860, 878, 1660, 1756, 2195, 3569, 4390, 7138, 8780, 14276, 17845, 18877, 35690, 36437, 37754, 71380, 72874, 75508, 94385, 145748, 182185, 188770, 364370, 377540, 728740, 1566791, 3133582, 6267164, 7833955, 15667910, 31335820]

約数ペア:

[(1, 31335820), (2, 15667910), (4, 7833955), (5, 6267164), (10, 3133582), (20, 1566791), (43, 728740), (83, 377540), (86, 364370), (166, 188770), (172, 182185), (215, 145748), (332, 94385), (415, 75508), (430, 72874), (439, 71380), (830, 37754), (860, 36437), (878, 35690), (1660, 18877), (1756, 17845), (2195, 14276), (3569, 8780), (4390, 7138)]