20577840

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{179}}^1\times {\mathrm{479}}^1$

素因数の和:674

約数の個数: 80

約数和(自身を含む): 64281600

約数和(自身を除く): 43703760

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 120, 179, 240, 358, 479, 537, 716, 895, 958, 1074, 1432, 1437, 1790, 1916, 2148, 2395, 2685, 2864, 2874, 3580, 3832, 4296, 4790, 5370, 5748, 7160, 7185, 7664, 8592, 9580, 10740, 11496, 14320, 14370, 19160, 21480, 22992, 28740, 38320, 42960, 57480, 85741, 114960, 171482, 257223, 342964, 428705, 514446, 685928, 857410, 1028892, 1286115, 1371856, 1714820, 2057784, 2572230, 3429640, 4115568, 5144460, 6859280, 10288920, 20577840]

約数ペア:

[(1, 20577840), (2, 10288920), (3, 6859280), (4, 5144460), (5, 4115568), (6, 3429640), (8, 2572230), (10, 2057784), (12, 1714820), (15, 1371856), (16, 1286115), (20, 1028892), (24, 857410), (30, 685928), (40, 514446), (48, 428705), (60, 342964), (80, 257223), (120, 171482), (179, 114960), (240, 85741), (358, 57480), (479, 42960), (537, 38320), (716, 28740), (895, 22992), (958, 21480), (1074, 19160), (1432, 14370), (1437, 14320), (1790, 11496), (1916, 10740), (2148, 9580), (2395, 8592), (2685, 7664), (2864, 7185), (2874, 7160), (3580, 5748), (3832, 5370), (4296, 4790)]