639221352

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{20347}}^1$

素因数の和:20391

約数の個数: 128

約数和(自身を含む): 2109680640

約数和(自身を除く): 1470459288

約数列:

[1, 2, 3, 4, 6, 7, 8, 11, 12, 14, 17, 21, 22, 24, 28, 33, 34, 42, 44, 51, 56, 66, 68, 77, 84, 88, 102, 119, 132, 136, 154, 168, 187, 204, 231, 238, 264, 308, 357, 374, 408, 462, 476, 561, 616, 714, 748, 924, 952, 1122, 1309, 1428, 1496, 1848, 2244, 2618, 2856, 3927, 4488, 5236, 7854, 10472, 15708, 20347, 31416, 40694, 61041, 81388, 122082, 142429, 162776, 223817, 244164, 284858, 345899, 427287, 447634, 488328, 569716, 671451, 691798, 854574, 895268, 1037697, 1139432, 1342902, 1383596, 1566719, 1709148, 1790536, 2075394, 2421293, 2685804, 2767192, 3133438, 3418296, 3804889, 4150788, 4700157, 4842586, 5371608, 6266876, 7263879, 7609778, 8301576, 9400314, 9685172, 11414667, 12533752, 14527758, 15219556, 18800628, 19370344, 22829334, 26634223, 29055516, 30439112, 37601256, 45658668, 53268446, 58111032, 79902669, 91317336, 106536892, 159805338, 213073784, 319610676, 639221352]

約数ペア:

[(1, 639221352), (2, 319610676), (3, 213073784), (4, 159805338), (6, 106536892), (7, 91317336), (8, 79902669), (11, 58111032), (12, 53268446), (14, 45658668), (17, 37601256), (21, 30439112), (22, 29055516), (24, 26634223), (28, 22829334), (33, 19370344), (34, 18800628), (42, 15219556), (44, 14527758), (51, 12533752), (56, 11414667), (66, 9685172), (68, 9400314), (77, 8301576), (84, 7609778), (88, 7263879), (102, 6266876), (119, 5371608), (132, 4842586), (136, 4700157), (154, 4150788), (168, 3804889), (187, 3418296), (204, 3133438), (231, 2767192), (238, 2685804), (264, 2421293), (308, 2075394), (357, 1790536), (374, 1709148), (408, 1566719), (462, 1383596), (476, 1342902), (561, 1139432), (616, 1037697), (714, 895268), (748, 854574), (924, 691798), (952, 671451), (1122, 569716), (1309, 488328), (1428, 447634), (1496, 427287), (1848, 345899), (2244, 284858), (2618, 244164), (2856, 223817), (3927, 162776), (4488, 142429), (5236, 122082), (7854, 81388), (10472, 61041), (15708, 40694), (20347, 31416)]