1285680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1$

素因数の和:514

約数の個数: 80

約数和(自身を含む): 4356864

約数和(自身を除く): 3071184

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 487, 528, 660, 880, 974, 1320, 1461, 1948, 2435, 2640, 2922, 3896, 4870, 5357, 5844, 7305, 7792, 9740, 10714, 11688, 14610, 16071, 19480, 21428, 23376, 26785, 29220, 32142, 38960, 42856, 53570, 58440, 64284, 80355, 85712, 107140, 116880, 128568, 160710, 214280, 257136, 321420, 428560, 642840, 1285680]

約数ペア:

[(1, 1285680), (2, 642840), (3, 428560), (4, 321420), (5, 257136), (6, 214280), (8, 160710), (10, 128568), (11, 116880), (12, 107140), (15, 85712), (16, 80355), (20, 64284), (22, 58440), (24, 53570), (30, 42856), (33, 38960), (40, 32142), (44, 29220), (48, 26785), (55, 23376), (60, 21428), (66, 19480), (80, 16071), (88, 14610), (110, 11688), (120, 10714), (132, 9740), (165, 7792), (176, 7305), (220, 5844), (240, 5357), (264, 4870), (330, 3896), (440, 2922), (487, 2640), (528, 2435), (660, 1948), (880, 1461), (974, 1320)]