18162880

素因数分解:

$2^6\times 5^1\times {\mathrm{211}}^1\times {\mathrm{269}}^1$

素因数の和:497

約数の個数: 56

約数和(自身を含む): 43616880

約数和(自身を除く): 25454000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 211, 269, 320, 422, 538, 844, 1055, 1076, 1345, 1688, 2110, 2152, 2690, 3376, 4220, 4304, 5380, 6752, 8440, 8608, 10760, 13504, 16880, 17216, 21520, 33760, 43040, 56759, 67520, 86080, 113518, 227036, 283795, 454072, 567590, 908144, 1135180, 1816288, 2270360, 3632576, 4540720, 9081440, 18162880]

約数ペア:

[(1, 18162880), (2, 9081440), (4, 4540720), (5, 3632576), (8, 2270360), (10, 1816288), (16, 1135180), (20, 908144), (32, 567590), (40, 454072), (64, 283795), (80, 227036), (160, 113518), (211, 86080), (269, 67520), (320, 56759), (422, 43040), (538, 33760), (844, 21520), (1055, 17216), (1076, 16880), (1345, 13504), (1688, 10760), (2110, 8608), (2152, 8440), (2690, 6752), (3376, 5380), (4220, 4304)]