19740160

素因数分解:

$2^9\times 5^1\times {\mathrm{11}}^1\times {\mathrm{701}}^1$

素因数の和:735

約数の個数: 80

約数和(自身を含む): 51706512

約数和(自身を除く): 31966352

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, 512, 640, 701, 704, 880, 1280, 1402, 1408, 1760, 2560, 2804, 2816, 3505, 3520, 5608, 5632, 7010, 7040, 7711, 11216, 14020, 14080, 15422, 22432, 28040, 28160, 30844, 38555, 44864, 56080, 61688, 77110, 89728, 112160, 123376, 154220, 179456, 224320, 246752, 308440, 358912, 448640, 493504, 616880, 897280, 987008, 1233760, 1794560, 1974016, 2467520, 3948032, 4935040, 9870080, 19740160]

約数ペア:

[(1, 19740160), (2, 9870080), (4, 4935040), (5, 3948032), (8, 2467520), (10, 1974016), (11, 1794560), (16, 1233760), (20, 987008), (22, 897280), (32, 616880), (40, 493504), (44, 448640), (55, 358912), (64, 308440), (80, 246752), (88, 224320), (110, 179456), (128, 154220), (160, 123376), (176, 112160), (220, 89728), (256, 77110), (320, 61688), (352, 56080), (440, 44864), (512, 38555), (640, 30844), (701, 28160), (704, 28040), (880, 22432), (1280, 15422), (1402, 14080), (1408, 14020), (1760, 11216), (2560, 7711), (2804, 7040), (2816, 7010), (3505, 5632), (3520, 5608)]