166726180

素因数分解:

$2^2\times 5^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1$

素因数の和:628

約数の個数: 48

約数和(自身を含む): 355420800

約数和(自身を除く): 188694620

約数列:

[1, 2, 4, 5, 10, 20, 163, 199, 257, 326, 398, 514, 652, 796, 815, 995, 1028, 1285, 1630, 1990, 2570, 3260, 3980, 5140, 32437, 41891, 51143, 64874, 83782, 102286, 129748, 162185, 167564, 204572, 209455, 255715, 324370, 418910, 511430, 648740, 837820, 1022860, 8336309, 16672618, 33345236, 41681545, 83363090, 166726180]

約数ペア:

[(1, 166726180), (2, 83363090), (4, 41681545), (5, 33345236), (10, 16672618), (20, 8336309), (163, 1022860), (199, 837820), (257, 648740), (326, 511430), (398, 418910), (514, 324370), (652, 255715), (796, 209455), (815, 204572), (995, 167564), (1028, 162185), (1285, 129748), (1630, 102286), (1990, 83782), (2570, 64874), (3260, 51143), (3980, 41891), (5140, 32437)]