51689988

素因数分解:

$2^2\times 3^5\times 7^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1$

素因数の和:204

約数の個数: 144

約数和(自身を含む): 158505984

約数和(自身を除く): 106815996

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 27, 28, 36, 42, 54, 63, 71, 81, 84, 107, 108, 126, 142, 162, 189, 213, 214, 243, 252, 284, 321, 324, 378, 426, 428, 486, 497, 567, 639, 642, 749, 756, 852, 963, 972, 994, 1134, 1278, 1284, 1491, 1498, 1701, 1917, 1926, 1988, 2247, 2268, 2556, 2889, 2982, 2996, 3402, 3834, 3852, 4473, 4494, 5751, 5778, 5964, 6741, 6804, 7597, 7668, 8667, 8946, 8988, 11502, 11556, 13419, 13482, 15194, 17253, 17334, 17892, 20223, 22791, 23004, 26001, 26838, 26964, 30388, 34506, 34668, 40257, 40446, 45582, 52002, 53179, 53676, 60669, 68373, 69012, 80514, 80892, 91164, 104004, 106358, 120771, 121338, 136746, 159537, 161028, 182007, 205119, 212716, 241542, 242676, 273492, 319074, 364014, 410238, 478611, 483084, 615357, 638148, 728028, 820476, 957222, 1230714, 1435833, 1846071, 1914444, 2461428, 2871666, 3692142, 4307499, 5743332, 7384284, 8614998, 12922497, 17229996, 25844994, 51689988]

約数ペア:

[(1, 51689988), (2, 25844994), (3, 17229996), (4, 12922497), (6, 8614998), (7, 7384284), (9, 5743332), (12, 4307499), (14, 3692142), (18, 2871666), (21, 2461428), (27, 1914444), (28, 1846071), (36, 1435833), (42, 1230714), (54, 957222), (63, 820476), (71, 728028), (81, 638148), (84, 615357), (107, 483084), (108, 478611), (126, 410238), (142, 364014), (162, 319074), (189, 273492), (213, 242676), (214, 241542), (243, 212716), (252, 205119), (284, 182007), (321, 161028), (324, 159537), (378, 136746), (426, 121338), (428, 120771), (486, 106358), (497, 104004), (567, 91164), (639, 80892), (642, 80514), (749, 69012), (756, 68373), (852, 60669), (963, 53676), (972, 53179), (994, 52002), (1134, 45582), (1278, 40446), (1284, 40257), (1491, 34668), (1498, 34506), (1701, 30388), (1917, 26964), (1926, 26838), (1988, 26001), (2247, 23004), (2268, 22791), (2556, 20223), (2889, 17892), (2982, 17334), (2996, 17253), (3402, 15194), (3834, 13482), (3852, 13419), (4473, 11556), (4494, 11502), (5751, 8988), (5778, 8946), (5964, 8667), (6741, 7668), (6804, 7597)]