218985520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{193}}^1\times {\mathrm{1091}}^1$

素因数の和:1310

約数の個数: 80

約数和(自身を含む): 551652192

約数和(自身を除く): 332666672

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 193, 208, 260, 386, 520, 772, 965, 1040, 1091, 1544, 1930, 2182, 2509, 3088, 3860, 4364, 5018, 5455, 7720, 8728, 10036, 10910, 12545, 14183, 15440, 17456, 20072, 21820, 25090, 28366, 40144, 43640, 50180, 56732, 70915, 87280, 100360, 113464, 141830, 200720, 210563, 226928, 283660, 421126, 567320, 842252, 1052815, 1134640, 1684504, 2105630, 2737319, 3369008, 4211260, 5474638, 8422520, 10949276, 13686595, 16845040, 21898552, 27373190, 43797104, 54746380, 109492760, 218985520]

約数ペア:

[(1, 218985520), (2, 109492760), (4, 54746380), (5, 43797104), (8, 27373190), (10, 21898552), (13, 16845040), (16, 13686595), (20, 10949276), (26, 8422520), (40, 5474638), (52, 4211260), (65, 3369008), (80, 2737319), (104, 2105630), (130, 1684504), (193, 1134640), (208, 1052815), (260, 842252), (386, 567320), (520, 421126), (772, 283660), (965, 226928), (1040, 210563), (1091, 200720), (1544, 141830), (1930, 113464), (2182, 100360), (2509, 87280), (3088, 70915), (3860, 56732), (4364, 50180), (5018, 43640), (5455, 40144), (7720, 28366), (8728, 25090), (10036, 21820), (10910, 20072), (12545, 17456), (14183, 15440)]