20161491824

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{89}}^1\times {\mathrm{15749}}^1$

素因数の和:15906

約数の個数: 80

約数和(自身を含む): 42184800000

約数和(自身を除く): 22023308176

約数列:

[1, 2, 4, 8, 16, 29, 31, 58, 62, 89, 116, 124, 178, 232, 248, 356, 464, 496, 712, 899, 1424, 1798, 2581, 2759, 3596, 5162, 5518, 7192, 10324, 11036, 14384, 15749, 20648, 22072, 31498, 41296, 44144, 62996, 80011, 125992, 160022, 251984, 320044, 456721, 488219, 640088, 913442, 976438, 1280176, 1401661, 1826884, 1952876, 2803322, 3653768, 3905752, 5606644, 7307536, 7811504, 11213288, 14158351, 22426576, 28316702, 40648169, 43451491, 56633404, 81296338, 86902982, 113266808, 162592676, 173805964, 226533616, 325185352, 347611928, 650370704, 695223856, 1260093239, 2520186478, 5040372956, 10080745912, 20161491824]

約数ペア:

[(1, 20161491824), (2, 10080745912), (4, 5040372956), (8, 2520186478), (16, 1260093239), (29, 695223856), (31, 650370704), (58, 347611928), (62, 325185352), (89, 226533616), (116, 173805964), (124, 162592676), (178, 113266808), (232, 86902982), (248, 81296338), (356, 56633404), (464, 43451491), (496, 40648169), (712, 28316702), (899, 22426576), (1424, 14158351), (1798, 11213288), (2581, 7811504), (2759, 7307536), (3596, 5606644), (5162, 3905752), (5518, 3653768), (7192, 2803322), (10324, 1952876), (11036, 1826884), (14384, 1401661), (15749, 1280176), (20648, 976438), (22072, 913442), (31498, 640088), (41296, 488219), (44144, 456721), (62996, 320044), (80011, 251984), (125992, 160022)]