18571520

素因数分解:

$2^8\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1319}}^1$

素因数の和:1351

約数の個数: 72

約数和(自身を含む): 48565440

約数和(自身を除く): 29993920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 32, 40, 44, 55, 64, 80, 88, 110, 128, 160, 176, 220, 256, 320, 352, 440, 640, 704, 880, 1280, 1319, 1408, 1760, 2638, 2816, 3520, 5276, 6595, 7040, 10552, 13190, 14080, 14509, 21104, 26380, 29018, 42208, 52760, 58036, 72545, 84416, 105520, 116072, 145090, 168832, 211040, 232144, 290180, 337664, 422080, 464288, 580360, 844160, 928576, 1160720, 1688320, 1857152, 2321440, 3714304, 4642880, 9285760, 18571520]

約数ペア:

[(1, 18571520), (2, 9285760), (4, 4642880), (5, 3714304), (8, 2321440), (10, 1857152), (11, 1688320), (16, 1160720), (20, 928576), (22, 844160), (32, 580360), (40, 464288), (44, 422080), (55, 337664), (64, 290180), (80, 232144), (88, 211040), (110, 168832), (128, 145090), (160, 116072), (176, 105520), (220, 84416), (256, 72545), (320, 58036), (352, 52760), (440, 42208), (640, 29018), (704, 26380), (880, 21104), (1280, 14509), (1319, 14080), (1408, 13190), (1760, 10552), (2638, 7040), (2816, 6595), (3520, 5276)]