28181104

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{41}}^1$

素因数の和:111

約数の個数: 120

約数和(自身を含む): 71432928

約数和(自身を除く): 43251824

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 19, 28, 34, 38, 41, 56, 68, 76, 82, 112, 119, 133, 136, 152, 164, 238, 266, 272, 287, 304, 323, 328, 361, 476, 532, 574, 646, 656, 697, 722, 779, 952, 1064, 1148, 1292, 1394, 1444, 1558, 1904, 2128, 2261, 2296, 2527, 2584, 2788, 2888, 3116, 4522, 4592, 4879, 5054, 5168, 5453, 5576, 5776, 6137, 6232, 9044, 9758, 10108, 10906, 11152, 12274, 12464, 13243, 14801, 18088, 19516, 20216, 21812, 24548, 26486, 29602, 36176, 39032, 40432, 42959, 43624, 49096, 52972, 59204, 78064, 85918, 87248, 92701, 98192, 103607, 105944, 118408, 171836, 185402, 207214, 211888, 236816, 251617, 343672, 370804, 414428, 503234, 687344, 741608, 828856, 1006468, 1483216, 1657712, 1761319, 2012936, 3522638, 4025872, 7045276, 14090552, 28181104]

約数ペア:

[(1, 28181104), (2, 14090552), (4, 7045276), (7, 4025872), (8, 3522638), (14, 2012936), (16, 1761319), (17, 1657712), (19, 1483216), (28, 1006468), (34, 828856), (38, 741608), (41, 687344), (56, 503234), (68, 414428), (76, 370804), (82, 343672), (112, 251617), (119, 236816), (133, 211888), (136, 207214), (152, 185402), (164, 171836), (238, 118408), (266, 105944), (272, 103607), (287, 98192), (304, 92701), (323, 87248), (328, 85918), (361, 78064), (476, 59204), (532, 52972), (574, 49096), (646, 43624), (656, 42959), (697, 40432), (722, 39032), (779, 36176), (952, 29602), (1064, 26486), (1148, 24548), (1292, 21812), (1394, 20216), (1444, 19516), (1558, 18088), (1904, 14801), (2128, 13243), (2261, 12464), (2296, 12274), (2527, 11152), (2584, 10906), (2788, 10108), (2888, 9758), (3116, 9044), (4522, 6232), (4592, 6137), (4879, 5776), (5054, 5576), (5168, 5453)]