54677840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{389}}^1$

素因数の和:660

約数の個数: 80

約数和(自身を含む): 146240640

約数和(自身を除く): 91562800

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 251, 280, 389, 502, 560, 778, 1004, 1255, 1556, 1757, 1945, 2008, 2510, 2723, 3112, 3514, 3890, 4016, 5020, 5446, 6224, 7028, 7780, 8785, 10040, 10892, 13615, 14056, 15560, 17570, 20080, 21784, 27230, 28112, 31120, 35140, 43568, 54460, 70280, 97639, 108920, 140560, 195278, 217840, 390556, 488195, 683473, 781112, 976390, 1366946, 1562224, 1952780, 2733892, 3417365, 3905560, 5467784, 6834730, 7811120, 10935568, 13669460, 27338920, 54677840]

約数ペア:

[(1, 54677840), (2, 27338920), (4, 13669460), (5, 10935568), (7, 7811120), (8, 6834730), (10, 5467784), (14, 3905560), (16, 3417365), (20, 2733892), (28, 1952780), (35, 1562224), (40, 1366946), (56, 976390), (70, 781112), (80, 683473), (112, 488195), (140, 390556), (251, 217840), (280, 195278), (389, 140560), (502, 108920), (560, 97639), (778, 70280), (1004, 54460), (1255, 43568), (1556, 35140), (1757, 31120), (1945, 28112), (2008, 27230), (2510, 21784), (2723, 20080), (3112, 17570), (3514, 15560), (3890, 14056), (4016, 13615), (5020, 10892), (5446, 10040), (6224, 8785), (7028, 7780)]