81219456

素因数分解:

$2^7\times 3^3\times {\mathrm{71}}^1\times {\mathrm{331}}^1$

素因数の和:425

約数の個数: 128

約数和(自身を含む): 243820800

約数和(自身を除く): 162601344

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 32, 36, 48, 54, 64, 71, 72, 96, 108, 128, 142, 144, 192, 213, 216, 284, 288, 331, 384, 426, 432, 568, 576, 639, 662, 852, 864, 993, 1136, 1152, 1278, 1324, 1704, 1728, 1917, 1986, 2272, 2556, 2648, 2979, 3408, 3456, 3834, 3972, 4544, 5112, 5296, 5958, 6816, 7668, 7944, 8937, 9088, 10224, 10592, 11916, 13632, 15336, 15888, 17874, 20448, 21184, 23501, 23832, 27264, 30672, 31776, 35748, 40896, 42368, 47002, 47664, 61344, 63552, 70503, 71496, 81792, 94004, 95328, 122688, 127104, 141006, 142992, 188008, 190656, 211509, 245376, 282012, 285984, 376016, 381312, 423018, 564024, 571968, 634527, 752032, 846036, 1128048, 1143936, 1269054, 1504064, 1692072, 2256096, 2538108, 3008128, 3384144, 4512192, 5076216, 6768288, 9024384, 10152432, 13536576, 20304864, 27073152, 40609728, 81219456]

約数ペア:

[(1, 81219456), (2, 40609728), (3, 27073152), (4, 20304864), (6, 13536576), (8, 10152432), (9, 9024384), (12, 6768288), (16, 5076216), (18, 4512192), (24, 3384144), (27, 3008128), (32, 2538108), (36, 2256096), (48, 1692072), (54, 1504064), (64, 1269054), (71, 1143936), (72, 1128048), (96, 846036), (108, 752032), (128, 634527), (142, 571968), (144, 564024), (192, 423018), (213, 381312), (216, 376016), (284, 285984), (288, 282012), (331, 245376), (384, 211509), (426, 190656), (432, 188008), (568, 142992), (576, 141006), (639, 127104), (662, 122688), (852, 95328), (864, 94004), (993, 81792), (1136, 71496), (1152, 70503), (1278, 63552), (1324, 61344), (1704, 47664), (1728, 47002), (1917, 42368), (1986, 40896), (2272, 35748), (2556, 31776), (2648, 30672), (2979, 27264), (3408, 23832), (3456, 23501), (3834, 21184), (3972, 20448), (4544, 17874), (5112, 15888), (5296, 15336), (5958, 13632), (6816, 11916), (7668, 10592), (7944, 10224), (8937, 9088)]