820798385

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{3947}}^1$

素因数の和:4181

約数の個数: 32

約数和(自身を含む): 1137024000

約数和(自身を除く): 316225615

約数列:

[1, 5, 11, 19, 55, 95, 199, 209, 995, 1045, 2189, 3781, 3947, 10945, 18905, 19735, 41591, 43417, 74993, 207955, 217085, 374965, 785453, 824923, 3927265, 4124615, 8639983, 14923607, 43199915, 74618035, 164159677, 820798385]

約数ペア:

[(1, 820798385), (5, 164159677), (11, 74618035), (19, 43199915), (55, 14923607), (95, 8639983), (199, 4124615), (209, 3927265), (995, 824923), (1045, 785453), (2189, 374965), (3781, 217085), (3947, 207955), (10945, 74993), (18905, 43417), (19735, 41591)]