261217852

素因数分解:

$2^2\times 7^1\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{1699}}^1$

素因数の和:1763

約数の個数: 72

約数和(自身を含む): 584528000

約数和(自身を除く): 323310148

約数列:

[1, 2, 4, 7, 14, 17, 19, 28, 34, 38, 68, 76, 119, 133, 238, 266, 289, 323, 476, 532, 578, 646, 1156, 1292, 1699, 2023, 2261, 3398, 4046, 4522, 5491, 6796, 8092, 9044, 10982, 11893, 21964, 23786, 28883, 32281, 38437, 47572, 57766, 64562, 76874, 115532, 129124, 153748, 202181, 225967, 404362, 451934, 491011, 548777, 808724, 903868, 982022, 1097554, 1964044, 2195108, 3437077, 3841439, 6874154, 7682878, 9329209, 13748308, 15365756, 18658418, 37316836, 65304463, 130608926, 261217852]

約数ペア:

[(1, 261217852), (2, 130608926), (4, 65304463), (7, 37316836), (14, 18658418), (17, 15365756), (19, 13748308), (28, 9329209), (34, 7682878), (38, 6874154), (68, 3841439), (76, 3437077), (119, 2195108), (133, 1964044), (238, 1097554), (266, 982022), (289, 903868), (323, 808724), (476, 548777), (532, 491011), (578, 451934), (646, 404362), (1156, 225967), (1292, 202181), (1699, 153748), (2023, 129124), (2261, 115532), (3398, 76874), (4046, 64562), (4522, 57766), (5491, 47572), (6796, 38437), (8092, 32281), (9044, 28883), (10982, 23786), (11893, 21964)]