20842560

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{7237}}^1$

素因数の和:7260

約数の個数: 84

約数和(自身を含む): 71699628

約数和(自身を除く): 50857068

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 40, 45, 48, 60, 64, 72, 80, 90, 96, 120, 144, 160, 180, 192, 240, 288, 320, 360, 480, 576, 720, 960, 1440, 2880, 7237, 14474, 21711, 28948, 36185, 43422, 57896, 65133, 72370, 86844, 108555, 115792, 130266, 144740, 173688, 217110, 231584, 260532, 289480, 325665, 347376, 434220, 463168, 521064, 578960, 651330, 694752, 868440, 1042128, 1157920, 1302660, 1389504, 1736880, 2084256, 2315840, 2605320, 3473760, 4168512, 5210640, 6947520, 10421280, 20842560]

約数ペア:

[(1, 20842560), (2, 10421280), (3, 6947520), (4, 5210640), (5, 4168512), (6, 3473760), (8, 2605320), (9, 2315840), (10, 2084256), (12, 1736880), (15, 1389504), (16, 1302660), (18, 1157920), (20, 1042128), (24, 868440), (30, 694752), (32, 651330), (36, 578960), (40, 521064), (45, 463168), (48, 434220), (60, 347376), (64, 325665), (72, 289480), (80, 260532), (90, 231584), (96, 217110), (120, 173688), (144, 144740), (160, 130266), (180, 115792), (192, 108555), (240, 86844), (288, 72370), (320, 65133), (360, 57896), (480, 43422), (576, 36185), (720, 28948), (960, 21711), (1440, 14474), (2880, 7237)]