55984880

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{257}}^1\times {\mathrm{389}}^1$

素因数の和:666

約数の個数: 80

約数和(自身を含む): 149722560

約数和(自身を除く): 93737680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 257, 280, 389, 514, 560, 778, 1028, 1285, 1556, 1799, 1945, 2056, 2570, 2723, 3112, 3598, 3890, 4112, 5140, 5446, 6224, 7196, 7780, 8995, 10280, 10892, 13615, 14392, 15560, 17990, 20560, 21784, 27230, 28784, 31120, 35980, 43568, 54460, 71960, 99973, 108920, 143920, 199946, 217840, 399892, 499865, 699811, 799784, 999730, 1399622, 1599568, 1999460, 2799244, 3499055, 3998920, 5598488, 6998110, 7997840, 11196976, 13996220, 27992440, 55984880]

約数ペア:

[(1, 55984880), (2, 27992440), (4, 13996220), (5, 11196976), (7, 7997840), (8, 6998110), (10, 5598488), (14, 3998920), (16, 3499055), (20, 2799244), (28, 1999460), (35, 1599568), (40, 1399622), (56, 999730), (70, 799784), (80, 699811), (112, 499865), (140, 399892), (257, 217840), (280, 199946), (389, 143920), (514, 108920), (560, 99973), (778, 71960), (1028, 54460), (1285, 43568), (1556, 35980), (1799, 31120), (1945, 28784), (2056, 27230), (2570, 21784), (2723, 20560), (3112, 17990), (3598, 15560), (3890, 14392), (4112, 13615), (5140, 10892), (5446, 10280), (6224, 8995), (7196, 7780)]