20570880

素因数分解:

$2^8\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1$

素因数の和:522

約数の個数: 144

約数和(自身を含む): 71817984

約数和(自身を除く): 51247104

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 128, 132, 160, 165, 176, 192, 220, 240, 256, 264, 320, 330, 352, 384, 440, 480, 487, 528, 640, 660, 704, 768, 880, 960, 974, 1056, 1280, 1320, 1408, 1461, 1760, 1920, 1948, 2112, 2435, 2640, 2816, 2922, 3520, 3840, 3896, 4224, 4870, 5280, 5357, 5844, 7040, 7305, 7792, 8448, 9740, 10560, 10714, 11688, 14080, 14610, 15584, 16071, 19480, 21120, 21428, 23376, 26785, 29220, 31168, 32142, 38960, 42240, 42856, 46752, 53570, 58440, 62336, 64284, 77920, 80355, 85712, 93504, 107140, 116880, 124672, 128568, 155840, 160710, 171424, 187008, 214280, 233760, 257136, 311680, 321420, 342848, 374016, 428560, 467520, 514272, 623360, 642840, 685696, 857120, 935040, 1028544, 1285680, 1371392, 1714240, 1870080, 2057088, 2571360, 3428480, 4114176, 5142720, 6856960, 10285440, 20570880]

約数ペア:

[(1, 20570880), (2, 10285440), (3, 6856960), (4, 5142720), (5, 4114176), (6, 3428480), (8, 2571360), (10, 2057088), (11, 1870080), (12, 1714240), (15, 1371392), (16, 1285680), (20, 1028544), (22, 935040), (24, 857120), (30, 685696), (32, 642840), (33, 623360), (40, 514272), (44, 467520), (48, 428560), (55, 374016), (60, 342848), (64, 321420), (66, 311680), (80, 257136), (88, 233760), (96, 214280), (110, 187008), (120, 171424), (128, 160710), (132, 155840), (160, 128568), (165, 124672), (176, 116880), (192, 107140), (220, 93504), (240, 85712), (256, 80355), (264, 77920), (320, 64284), (330, 62336), (352, 58440), (384, 53570), (440, 46752), (480, 42856), (487, 42240), (528, 38960), (640, 32142), (660, 31168), (704, 29220), (768, 26785), (880, 23376), (960, 21428), (974, 21120), (1056, 19480), (1280, 16071), (1320, 15584), (1408, 14610), (1461, 14080), (1760, 11688), (1920, 10714), (1948, 10560), (2112, 9740), (2435, 8448), (2640, 7792), (2816, 7305), (2922, 7040), (3520, 5844), (3840, 5357), (3896, 5280), (4224, 4870)]