2807840

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1$

素因数の和:154

約数の個数: 96

約数和(自身を含む): 7983360

約数和(自身を除く): 5175520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 70, 80, 92, 109, 112, 115, 140, 160, 161, 184, 218, 224, 230, 280, 322, 368, 436, 460, 545, 560, 644, 736, 763, 805, 872, 920, 1090, 1120, 1288, 1526, 1610, 1744, 1840, 2180, 2507, 2576, 3052, 3220, 3488, 3680, 3815, 4360, 5014, 5152, 6104, 6440, 7630, 8720, 10028, 12208, 12535, 12880, 15260, 17440, 17549, 20056, 24416, 25070, 25760, 30520, 35098, 40112, 50140, 61040, 70196, 80224, 87745, 100280, 122080, 140392, 175490, 200560, 280784, 350980, 401120, 561568, 701960, 1403920, 2807840]

約数ペア:

[(1, 2807840), (2, 1403920), (4, 701960), (5, 561568), (7, 401120), (8, 350980), (10, 280784), (14, 200560), (16, 175490), (20, 140392), (23, 122080), (28, 100280), (32, 87745), (35, 80224), (40, 70196), (46, 61040), (56, 50140), (70, 40112), (80, 35098), (92, 30520), (109, 25760), (112, 25070), (115, 24416), (140, 20056), (160, 17549), (161, 17440), (184, 15260), (218, 12880), (224, 12535), (230, 12208), (280, 10028), (322, 8720), (368, 7630), (436, 6440), (460, 6104), (545, 5152), (560, 5014), (644, 4360), (736, 3815), (763, 3680), (805, 3488), (872, 3220), (920, 3052), (1090, 2576), (1120, 2507), (1288, 2180), (1526, 1840), (1610, 1744)]