256984272

素因数分解:

$2^4\times 3^3\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{239}}^1$

素因数の和:406

約数の個数: 160

約数和(自身を含む): 785664000

約数和(自身を除く): 528679728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 19, 24, 27, 36, 38, 48, 54, 57, 72, 76, 108, 114, 131, 144, 152, 171, 216, 228, 239, 262, 304, 342, 393, 432, 456, 478, 513, 524, 684, 717, 786, 912, 956, 1026, 1048, 1179, 1368, 1434, 1572, 1912, 2052, 2096, 2151, 2358, 2489, 2736, 2868, 3144, 3537, 3824, 4104, 4302, 4541, 4716, 4978, 5736, 6288, 6453, 7074, 7467, 8208, 8604, 9082, 9432, 9956, 11472, 12906, 13623, 14148, 14934, 17208, 18164, 18864, 19912, 22401, 25812, 27246, 28296, 29868, 31309, 34416, 36328, 39824, 40869, 44802, 51624, 54492, 56592, 59736, 62618, 67203, 72656, 81738, 89604, 93927, 103248, 108984, 119472, 122607, 125236, 134406, 163476, 179208, 187854, 217968, 245214, 250472, 268812, 281781, 326952, 358416, 375708, 490428, 500944, 537624, 563562, 594871, 653904, 751416, 845343, 980856, 1075248, 1127124, 1189742, 1502832, 1690686, 1784613, 1961712, 2254248, 2379484, 3381372, 3569226, 4508496, 4758968, 5353839, 6762744, 7138452, 9517936, 10707678, 13525488, 14276904, 16061517, 21415356, 28553808, 32123034, 42830712, 64246068, 85661424, 128492136, 256984272]

約数ペア:

[(1, 256984272), (2, 128492136), (3, 85661424), (4, 64246068), (6, 42830712), (8, 32123034), (9, 28553808), (12, 21415356), (16, 16061517), (18, 14276904), (19, 13525488), (24, 10707678), (27, 9517936), (36, 7138452), (38, 6762744), (48, 5353839), (54, 4758968), (57, 4508496), (72, 3569226), (76, 3381372), (108, 2379484), (114, 2254248), (131, 1961712), (144, 1784613), (152, 1690686), (171, 1502832), (216, 1189742), (228, 1127124), (239, 1075248), (262, 980856), (304, 845343), (342, 751416), (393, 653904), (432, 594871), (456, 563562), (478, 537624), (513, 500944), (524, 490428), (684, 375708), (717, 358416), (786, 326952), (912, 281781), (956, 268812), (1026, 250472), (1048, 245214), (1179, 217968), (1368, 187854), (1434, 179208), (1572, 163476), (1912, 134406), (2052, 125236), (2096, 122607), (2151, 119472), (2358, 108984), (2489, 103248), (2736, 93927), (2868, 89604), (3144, 81738), (3537, 72656), (3824, 67203), (4104, 62618), (4302, 59736), (4541, 56592), (4716, 54492), (4978, 51624), (5736, 44802), (6288, 40869), (6453, 39824), (7074, 36328), (7467, 34416), (8208, 31309), (8604, 29868), (9082, 28296), (9432, 27246), (9956, 25812), (11472, 22401), (12906, 19912), (13623, 18864), (14148, 18164), (14934, 17208)]