20164587516

素因数分解:

$2^2\times 3^2\times {\mathrm{29}}^1\times {\mathrm{2663}}^1\times {\mathrm{7253}}^1$

素因数の和:9955

約数の個数: 72

約数和(自身を含む): 52756310880

約数和(自身を除く): 32591723364

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 29, 36, 58, 87, 116, 174, 261, 348, 522, 1044, 2663, 5326, 7253, 7989, 10652, 14506, 15978, 21759, 23967, 29012, 31956, 43518, 47934, 65277, 77227, 87036, 95868, 130554, 154454, 210337, 231681, 261108, 308908, 420674, 463362, 631011, 695043, 841348, 926724, 1262022, 1390086, 1893033, 2524044, 2780172, 3786066, 7572132, 19314739, 38629478, 57944217, 77258956, 115888434, 173832651, 231776868, 347665302, 560127431, 695330604, 1120254862, 1680382293, 2240509724, 3360764586, 5041146879, 6721529172, 10082293758, 20164587516]

約数ペア:

[(1, 20164587516), (2, 10082293758), (3, 6721529172), (4, 5041146879), (6, 3360764586), (9, 2240509724), (12, 1680382293), (18, 1120254862), (29, 695330604), (36, 560127431), (58, 347665302), (87, 231776868), (116, 173832651), (174, 115888434), (261, 77258956), (348, 57944217), (522, 38629478), (1044, 19314739), (2663, 7572132), (5326, 3786066), (7253, 2780172), (7989, 2524044), (10652, 1893033), (14506, 1390086), (15978, 1262022), (21759, 926724), (23967, 841348), (29012, 695043), (31956, 631011), (43518, 463362), (47934, 420674), (65277, 308908), (77227, 261108), (87036, 231681), (95868, 210337), (130554, 154454)]