261511488

素因数分解:

$2^6\times 3^2\times 7^1\times {\mathrm{79}}^1\times {\mathrm{821}}^1$

素因数の和:925

約数の個数: 168

約数和(自身を含む): 868558080

約数和(自身を除く): 607046592

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 56, 63, 64, 72, 79, 84, 96, 112, 126, 144, 158, 168, 192, 224, 237, 252, 288, 316, 336, 448, 474, 504, 553, 576, 632, 672, 711, 821, 948, 1008, 1106, 1264, 1344, 1422, 1642, 1659, 1896, 2016, 2212, 2463, 2528, 2844, 3284, 3318, 3792, 4032, 4424, 4926, 4977, 5056, 5688, 5747, 6568, 6636, 7389, 7584, 8848, 9852, 9954, 11376, 11494, 13136, 13272, 14778, 15168, 17241, 17696, 19704, 19908, 22752, 22988, 26272, 26544, 29556, 34482, 35392, 39408, 39816, 45504, 45976, 51723, 52544, 53088, 59112, 64859, 68964, 78816, 79632, 91952, 103446, 106176, 118224, 129718, 137928, 157632, 159264, 183904, 194577, 206892, 236448, 259436, 275856, 318528, 367808, 389154, 413784, 454013, 472896, 518872, 551712, 583731, 778308, 827568, 908026, 1037744, 1103424, 1167462, 1362039, 1556616, 1655136, 1816052, 2075488, 2334924, 2724078, 3113232, 3310272, 3632104, 4086117, 4150976, 4669848, 5448156, 6226464, 7264208, 8172234, 9339696, 10896312, 12452928, 14528416, 16344468, 18679392, 21792624, 29056832, 32688936, 37358784, 43585248, 65377872, 87170496, 130755744, 261511488]

約数ペア:

[(1, 261511488), (2, 130755744), (3, 87170496), (4, 65377872), (6, 43585248), (7, 37358784), (8, 32688936), (9, 29056832), (12, 21792624), (14, 18679392), (16, 16344468), (18, 14528416), (21, 12452928), (24, 10896312), (28, 9339696), (32, 8172234), (36, 7264208), (42, 6226464), (48, 5448156), (56, 4669848), (63, 4150976), (64, 4086117), (72, 3632104), (79, 3310272), (84, 3113232), (96, 2724078), (112, 2334924), (126, 2075488), (144, 1816052), (158, 1655136), (168, 1556616), (192, 1362039), (224, 1167462), (237, 1103424), (252, 1037744), (288, 908026), (316, 827568), (336, 778308), (448, 583731), (474, 551712), (504, 518872), (553, 472896), (576, 454013), (632, 413784), (672, 389154), (711, 367808), (821, 318528), (948, 275856), (1008, 259436), (1106, 236448), (1264, 206892), (1344, 194577), (1422, 183904), (1642, 159264), (1659, 157632), (1896, 137928), (2016, 129718), (2212, 118224), (2463, 106176), (2528, 103446), (2844, 91952), (3284, 79632), (3318, 78816), (3792, 68964), (4032, 64859), (4424, 59112), (4926, 53088), (4977, 52544), (5056, 51723), (5688, 45976), (5747, 45504), (6568, 39816), (6636, 39408), (7389, 35392), (7584, 34482), (8848, 29556), (9852, 26544), (9954, 26272), (11376, 22988), (11494, 22752), (13136, 19908), (13272, 19704), (14778, 17696), (15168, 17241)]