261227824

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1$

素因数の和:219

約数の個数: 160

約数和(自身を含む): 639959040

約数和(自身を除く): 378731216

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 29, 31, 44, 52, 58, 62, 88, 104, 116, 124, 127, 143, 176, 208, 232, 248, 254, 286, 319, 341, 377, 403, 464, 496, 508, 572, 638, 682, 754, 806, 899, 1016, 1144, 1276, 1364, 1397, 1508, 1612, 1651, 1798, 2032, 2288, 2552, 2728, 2794, 3016, 3224, 3302, 3596, 3683, 3937, 4147, 4433, 5104, 5456, 5588, 6032, 6448, 6604, 7192, 7366, 7874, 8294, 8866, 9889, 11176, 11687, 13208, 14384, 14732, 15748, 16588, 17732, 18161, 19778, 22352, 23374, 26416, 29464, 31496, 33176, 35464, 36322, 39556, 40513, 43307, 46748, 47879, 51181, 58928, 62992, 66352, 70928, 72644, 79112, 81026, 86614, 93496, 95758, 102362, 114173, 128557, 145288, 158224, 162052, 173228, 186992, 191516, 204724, 228346, 257114, 290576, 324104, 346456, 383032, 409448, 456692, 514228, 526669, 562991, 648208, 692912, 766064, 818896, 913384, 1028456, 1053338, 1125982, 1255903, 1484249, 1826768, 2056912, 2106676, 2251964, 2511806, 2968498, 4213352, 4503928, 5023612, 5936996, 8426704, 9007856, 10047224, 11873992, 16326739, 20094448, 23747984, 32653478, 65306956, 130613912, 261227824]

約数ペア:

[(1, 261227824), (2, 130613912), (4, 65306956), (8, 32653478), (11, 23747984), (13, 20094448), (16, 16326739), (22, 11873992), (26, 10047224), (29, 9007856), (31, 8426704), (44, 5936996), (52, 5023612), (58, 4503928), (62, 4213352), (88, 2968498), (104, 2511806), (116, 2251964), (124, 2106676), (127, 2056912), (143, 1826768), (176, 1484249), (208, 1255903), (232, 1125982), (248, 1053338), (254, 1028456), (286, 913384), (319, 818896), (341, 766064), (377, 692912), (403, 648208), (464, 562991), (496, 526669), (508, 514228), (572, 456692), (638, 409448), (682, 383032), (754, 346456), (806, 324104), (899, 290576), (1016, 257114), (1144, 228346), (1276, 204724), (1364, 191516), (1397, 186992), (1508, 173228), (1612, 162052), (1651, 158224), (1798, 145288), (2032, 128557), (2288, 114173), (2552, 102362), (2728, 95758), (2794, 93496), (3016, 86614), (3224, 81026), (3302, 79112), (3596, 72644), (3683, 70928), (3937, 66352), (4147, 62992), (4433, 58928), (5104, 51181), (5456, 47879), (5588, 46748), (6032, 43307), (6448, 40513), (6604, 39556), (7192, 36322), (7366, 35464), (7874, 33176), (8294, 31496), (8866, 29464), (9889, 26416), (11176, 23374), (11687, 22352), (13208, 19778), (14384, 18161), (14732, 17732), (15748, 16588)]