68243140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{61}}^2\times {\mathrm{131}}^1$

素因数の和:269

約数の個数: 72

約数和(自身を含む): 167783616

約数和(自身を除く): 99540476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 61, 70, 122, 131, 140, 244, 262, 305, 427, 524, 610, 655, 854, 917, 1220, 1310, 1708, 1834, 2135, 2620, 3668, 3721, 4270, 4585, 7442, 7991, 8540, 9170, 14884, 15982, 18340, 18605, 26047, 31964, 37210, 39955, 52094, 55937, 74420, 79910, 104188, 111874, 130235, 159820, 223748, 260470, 279685, 487451, 520940, 559370, 974902, 1118740, 1949804, 2437255, 3412157, 4874510, 6824314, 9749020, 13648628, 17060785, 34121570, 68243140]

約数ペア:

[(1, 68243140), (2, 34121570), (4, 17060785), (5, 13648628), (7, 9749020), (10, 6824314), (14, 4874510), (20, 3412157), (28, 2437255), (35, 1949804), (61, 1118740), (70, 974902), (122, 559370), (131, 520940), (140, 487451), (244, 279685), (262, 260470), (305, 223748), (427, 159820), (524, 130235), (610, 111874), (655, 104188), (854, 79910), (917, 74420), (1220, 55937), (1310, 52094), (1708, 39955), (1834, 37210), (2135, 31964), (2620, 26047), (3668, 18605), (3721, 18340), (4270, 15982), (4585, 14884), (7442, 9170), (7991, 8540)]