256385376

素因数分解:

$2^5\times 3^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^2$

素因数の和:154

約数の個数: 216

約数和(自身を含む): 828120384

約数和(自身を除く): 571735008

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 13, 16, 18, 24, 26, 31, 32, 36, 39, 47, 48, 52, 62, 72, 78, 93, 94, 96, 104, 117, 124, 141, 144, 156, 186, 188, 208, 234, 248, 279, 282, 288, 312, 372, 376, 403, 416, 423, 468, 496, 558, 564, 611, 624, 744, 752, 806, 846, 936, 992, 1116, 1128, 1209, 1222, 1248, 1457, 1488, 1504, 1612, 1692, 1833, 1872, 2209, 2232, 2256, 2418, 2444, 2914, 2976, 3224, 3384, 3627, 3666, 3744, 4371, 4418, 4464, 4512, 4836, 4888, 5499, 5828, 6448, 6627, 6768, 7254, 7332, 8742, 8836, 8928, 9672, 9776, 10998, 11656, 12896, 13113, 13254, 13536, 14508, 14664, 17484, 17672, 18941, 19344, 19552, 19881, 21996, 23312, 26226, 26508, 28717, 29016, 29328, 34968, 35344, 37882, 38688, 39762, 43992, 46624, 52452, 53016, 56823, 57434, 58032, 58656, 68479, 69936, 70688, 75764, 79524, 86151, 87984, 104904, 106032, 113646, 114868, 116064, 136958, 139872, 151528, 159048, 170469, 172302, 175968, 205437, 209808, 212064, 227292, 229736, 258453, 273916, 303056, 318096, 340938, 344604, 410874, 419616, 454584, 459472, 516906, 547832, 606112, 616311, 636192, 681876, 689208, 821748, 890227, 909168, 918944, 1033812, 1095664, 1232622, 1363752, 1378416, 1643496, 1780454, 1818336, 2067624, 2191328, 2465244, 2670681, 2727504, 2756832, 3286992, 3560908, 4135248, 4930488, 5341362, 5455008, 6573984, 7121816, 8012043, 8270496, 9860976, 10682724, 14243632, 16024086, 19721952, 21365448, 28487264, 32048172, 42730896, 64096344, 85461792, 128192688, 256385376]

約数ペア:

[(1, 256385376), (2, 128192688), (3, 85461792), (4, 64096344), (6, 42730896), (8, 32048172), (9, 28487264), (12, 21365448), (13, 19721952), (16, 16024086), (18, 14243632), (24, 10682724), (26, 9860976), (31, 8270496), (32, 8012043), (36, 7121816), (39, 6573984), (47, 5455008), (48, 5341362), (52, 4930488), (62, 4135248), (72, 3560908), (78, 3286992), (93, 2756832), (94, 2727504), (96, 2670681), (104, 2465244), (117, 2191328), (124, 2067624), (141, 1818336), (144, 1780454), (156, 1643496), (186, 1378416), (188, 1363752), (208, 1232622), (234, 1095664), (248, 1033812), (279, 918944), (282, 909168), (288, 890227), (312, 821748), (372, 689208), (376, 681876), (403, 636192), (416, 616311), (423, 606112), (468, 547832), (496, 516906), (558, 459472), (564, 454584), (611, 419616), (624, 410874), (744, 344604), (752, 340938), (806, 318096), (846, 303056), (936, 273916), (992, 258453), (1116, 229736), (1128, 227292), (1209, 212064), (1222, 209808), (1248, 205437), (1457, 175968), (1488, 172302), (1504, 170469), (1612, 159048), (1692, 151528), (1833, 139872), (1872, 136958), (2209, 116064), (2232, 114868), (2256, 113646), (2418, 106032), (2444, 104904), (2914, 87984), (2976, 86151), (3224, 79524), (3384, 75764), (3627, 70688), (3666, 69936), (3744, 68479), (4371, 58656), (4418, 58032), (4464, 57434), (4512, 56823), (4836, 53016), (4888, 52452), (5499, 46624), (5828, 43992), (6448, 39762), (6627, 38688), (6768, 37882), (7254, 35344), (7332, 34968), (8742, 29328), (8836, 29016), (8928, 28717), (9672, 26508), (9776, 26226), (10998, 23312), (11656, 21996), (12896, 19881), (13113, 19552), (13254, 19344), (13536, 18941), (14508, 17672), (14664, 17484)]