20394008

素因数分解:

$2^3\times {\mathrm{23}}^2\times {\mathrm{61}}^1\times {\mathrm{79}}^1$

素因数の和:192

約数の個数: 48

約数和(自身を含む): 41143200

約数和(自身を除く): 20749192

約数列:

[1, 2, 4, 8, 23, 46, 61, 79, 92, 122, 158, 184, 244, 316, 488, 529, 632, 1058, 1403, 1817, 2116, 2806, 3634, 4232, 4819, 5612, 7268, 9638, 11224, 14536, 19276, 32269, 38552, 41791, 64538, 83582, 110837, 129076, 167164, 221674, 258152, 334328, 443348, 886696, 2549251, 5098502, 10197004, 20394008]

約数ペア:

[(1, 20394008), (2, 10197004), (4, 5098502), (8, 2549251), (23, 886696), (46, 443348), (61, 334328), (79, 258152), (92, 221674), (122, 167164), (158, 129076), (184, 110837), (244, 83582), (316, 64538), (488, 41791), (529, 38552), (632, 32269), (1058, 19276), (1403, 14536), (1817, 11224), (2116, 9638), (2806, 7268), (3634, 5612), (4232, 4819)]