51985640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{463}}^1$

素因数の和:882

約数の個数: 64

約数和(自身を含む): 134300160

約数和(自身を除く): 82314520

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 401, 463, 802, 926, 1604, 1852, 2005, 2315, 2807, 3208, 3241, 3704, 4010, 4630, 5614, 6482, 8020, 9260, 11228, 12964, 14035, 16040, 16205, 18520, 22456, 25928, 28070, 32410, 56140, 64820, 112280, 129640, 185663, 371326, 742652, 928315, 1299641, 1485304, 1856630, 2599282, 3713260, 5198564, 6498205, 7426520, 10397128, 12996410, 25992820, 51985640]

約数ペア:

[(1, 51985640), (2, 25992820), (4, 12996410), (5, 10397128), (7, 7426520), (8, 6498205), (10, 5198564), (14, 3713260), (20, 2599282), (28, 1856630), (35, 1485304), (40, 1299641), (56, 928315), (70, 742652), (140, 371326), (280, 185663), (401, 129640), (463, 112280), (802, 64820), (926, 56140), (1604, 32410), (1852, 28070), (2005, 25928), (2315, 22456), (2807, 18520), (3208, 16205), (3241, 16040), (3704, 14035), (4010, 12964), (4630, 11228), (5614, 9260), (6482, 8020)]