28291312

素因数分解:

$2^4\times 7^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:218

約数の個数: 80

約数和(自身を含む): 65870784

約数和(自身を除く): 37579472

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 41, 56, 61, 82, 101, 112, 122, 164, 202, 244, 287, 328, 404, 427, 488, 574, 656, 707, 808, 854, 976, 1148, 1414, 1616, 1708, 2296, 2501, 2828, 3416, 4141, 4592, 5002, 5656, 6161, 6832, 8282, 10004, 11312, 12322, 16564, 17507, 20008, 24644, 28987, 33128, 35014, 40016, 43127, 49288, 57974, 66256, 70028, 86254, 98576, 115948, 140056, 172508, 231896, 252601, 280112, 345016, 463792, 505202, 690032, 1010404, 1768207, 2020808, 3536414, 4041616, 7072828, 14145656, 28291312]

約数ペア:

[(1, 28291312), (2, 14145656), (4, 7072828), (7, 4041616), (8, 3536414), (14, 2020808), (16, 1768207), (28, 1010404), (41, 690032), (56, 505202), (61, 463792), (82, 345016), (101, 280112), (112, 252601), (122, 231896), (164, 172508), (202, 140056), (244, 115948), (287, 98576), (328, 86254), (404, 70028), (427, 66256), (488, 57974), (574, 49288), (656, 43127), (707, 40016), (808, 35014), (854, 33128), (976, 28987), (1148, 24644), (1414, 20008), (1616, 17507), (1708, 16564), (2296, 12322), (2501, 11312), (2828, 10004), (3416, 8282), (4141, 6832), (4592, 6161), (5002, 5656)]