18857272

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{479}}^1$

素因数の和:548

約数の個数: 64

約数和(自身を含む): 43776000

約数和(自身を除く): 24918728

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 37, 38, 56, 74, 76, 133, 148, 152, 259, 266, 296, 479, 518, 532, 703, 958, 1036, 1064, 1406, 1916, 2072, 2812, 3353, 3832, 4921, 5624, 6706, 9101, 9842, 13412, 17723, 18202, 19684, 26824, 35446, 36404, 39368, 63707, 70892, 72808, 124061, 127414, 141784, 248122, 254828, 336737, 496244, 509656, 673474, 992488, 1346948, 2357159, 2693896, 4714318, 9428636, 18857272]

約数ペア:

[(1, 18857272), (2, 9428636), (4, 4714318), (7, 2693896), (8, 2357159), (14, 1346948), (19, 992488), (28, 673474), (37, 509656), (38, 496244), (56, 336737), (74, 254828), (76, 248122), (133, 141784), (148, 127414), (152, 124061), (259, 72808), (266, 70892), (296, 63707), (479, 39368), (518, 36404), (532, 35446), (703, 26824), (958, 19684), (1036, 18202), (1064, 17723), (1406, 13412), (1916, 9842), (2072, 9101), (2812, 6706), (3353, 5624), (3832, 4921)]