639739298

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1\times {\mathrm{823}}^1$

素因数の和:1322

約数の個数: 32

約数和(自身を含む): 1062564480

約数和(自身を除く): 422825182

約数列:

[1, 2, 11, 22, 89, 178, 397, 794, 823, 979, 1646, 1958, 4367, 8734, 9053, 18106, 35333, 70666, 73247, 146494, 326731, 388663, 653462, 777326, 805717, 1611434, 3594041, 7188082, 29079059, 58158118, 319869649, 639739298]

約数ペア:

[(1, 639739298), (2, 319869649), (11, 58158118), (22, 29079059), (89, 7188082), (178, 3594041), (397, 1611434), (794, 805717), (823, 777326), (979, 653462), (1646, 388663), (1958, 326731), (4367, 146494), (8734, 73247), (9053, 70666), (18106, 35333)]