31312568

素因数分解:

$2^3\times 7^2\times {\mathrm{23}}^2\times {\mathrm{151}}^1$

素因数の和:217

約数の個数: 72

約数和(自身を含む): 71867880

約数和(自身を除く): 40555312

約数列:

[1, 2, 4, 7, 8, 14, 23, 28, 46, 49, 56, 92, 98, 151, 161, 184, 196, 302, 322, 392, 529, 604, 644, 1057, 1058, 1127, 1208, 1288, 2114, 2116, 2254, 3473, 3703, 4228, 4232, 4508, 6946, 7399, 7406, 8456, 9016, 13892, 14798, 14812, 24311, 25921, 27784, 29596, 29624, 48622, 51842, 59192, 79879, 97244, 103684, 159758, 170177, 194488, 207368, 319516, 340354, 559153, 639032, 680708, 1118306, 1361416, 2236612, 3914071, 4473224, 7828142, 15656284, 31312568]

約数ペア:

[(1, 31312568), (2, 15656284), (4, 7828142), (7, 4473224), (8, 3914071), (14, 2236612), (23, 1361416), (28, 1118306), (46, 680708), (49, 639032), (56, 559153), (92, 340354), (98, 319516), (151, 207368), (161, 194488), (184, 170177), (196, 159758), (302, 103684), (322, 97244), (392, 79879), (529, 59192), (604, 51842), (644, 48622), (1057, 29624), (1058, 29596), (1127, 27784), (1208, 25921), (1288, 24311), (2114, 14812), (2116, 14798), (2254, 13892), (3473, 9016), (3703, 8456), (4228, 7406), (4232, 7399), (4508, 6946)]