20328616

素因数分解:

$2^3\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{541}}^1$

素因数の和:626

約数の個数: 64

約数和(自身を含む): 48389760

約数和(自身を除く): 28061144

約数列:

[1, 2, 4, 7, 8, 11, 14, 22, 28, 44, 56, 61, 77, 88, 122, 154, 244, 308, 427, 488, 541, 616, 671, 854, 1082, 1342, 1708, 2164, 2684, 3416, 3787, 4328, 4697, 5368, 5951, 7574, 9394, 11902, 15148, 18788, 23804, 30296, 33001, 37576, 41657, 47608, 66002, 83314, 132004, 166628, 231007, 264008, 333256, 363011, 462014, 726022, 924028, 1452044, 1848056, 2541077, 2904088, 5082154, 10164308, 20328616]

約数ペア:

[(1, 20328616), (2, 10164308), (4, 5082154), (7, 2904088), (8, 2541077), (11, 1848056), (14, 1452044), (22, 924028), (28, 726022), (44, 462014), (56, 363011), (61, 333256), (77, 264008), (88, 231007), (122, 166628), (154, 132004), (244, 83314), (308, 66002), (427, 47608), (488, 41657), (541, 37576), (616, 33001), (671, 30296), (854, 23804), (1082, 18788), (1342, 15148), (1708, 11902), (2164, 9394), (2684, 7574), (3416, 5951), (3787, 5368), (4328, 4697)]