217939456

素因数分解:

$2^9\times 7^3\times {\mathrm{17}}^1\times {\mathrm{73}}^1$

素因数の和:129

約数の個数: 160

約数和(自身を含む): 545054400

約数和(自身を除く): 327114944

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 32, 34, 49, 56, 64, 68, 73, 98, 112, 119, 128, 136, 146, 196, 224, 238, 256, 272, 292, 343, 392, 448, 476, 511, 512, 544, 584, 686, 784, 833, 896, 952, 1022, 1088, 1168, 1241, 1372, 1568, 1666, 1792, 1904, 2044, 2176, 2336, 2482, 2744, 3136, 3332, 3577, 3584, 3808, 4088, 4352, 4672, 4964, 5488, 5831, 6272, 6664, 7154, 7616, 8176, 8687, 8704, 9344, 9928, 10976, 11662, 12544, 13328, 14308, 15232, 16352, 17374, 18688, 19856, 21952, 23324, 25039, 25088, 26656, 28616, 30464, 32704, 34748, 37376, 39712, 43904, 46648, 50078, 53312, 57232, 60809, 60928, 65408, 69496, 79424, 87808, 93296, 100156, 106624, 114464, 121618, 130816, 138992, 158848, 175616, 186592, 200312, 213248, 228928, 243236, 261632, 277984, 317696, 373184, 400624, 425663, 426496, 457856, 486472, 555968, 635392, 746368, 801248, 851326, 915712, 972944, 1111936, 1492736, 1602496, 1702652, 1831424, 1945888, 2223872, 2985472, 3204992, 3405304, 3891776, 4447744, 6409984, 6810608, 7783552, 12819968, 13621216, 15567104, 27242432, 31134208, 54484864, 108969728, 217939456]

約数ペア:

[(1, 217939456), (2, 108969728), (4, 54484864), (7, 31134208), (8, 27242432), (14, 15567104), (16, 13621216), (17, 12819968), (28, 7783552), (32, 6810608), (34, 6409984), (49, 4447744), (56, 3891776), (64, 3405304), (68, 3204992), (73, 2985472), (98, 2223872), (112, 1945888), (119, 1831424), (128, 1702652), (136, 1602496), (146, 1492736), (196, 1111936), (224, 972944), (238, 915712), (256, 851326), (272, 801248), (292, 746368), (343, 635392), (392, 555968), (448, 486472), (476, 457856), (511, 426496), (512, 425663), (544, 400624), (584, 373184), (686, 317696), (784, 277984), (833, 261632), (896, 243236), (952, 228928), (1022, 213248), (1088, 200312), (1168, 186592), (1241, 175616), (1372, 158848), (1568, 138992), (1666, 130816), (1792, 121618), (1904, 114464), (2044, 106624), (2176, 100156), (2336, 93296), (2482, 87808), (2744, 79424), (3136, 69496), (3332, 65408), (3577, 60928), (3584, 60809), (3808, 57232), (4088, 53312), (4352, 50078), (4672, 46648), (4964, 43904), (5488, 39712), (5831, 37376), (6272, 34748), (6664, 32704), (7154, 30464), (7616, 28616), (8176, 26656), (8687, 25088), (8704, 25039), (9344, 23324), (9928, 21952), (10976, 19856), (11662, 18688), (12544, 17374), (13328, 16352), (14308, 15232)]