398196736

素因数分解:

$2^{18}\times 7^2\times {\mathrm{31}}^1$

素因数の和:81

約数の個数: 114

約数和(自身を含む): 956299488

約数和(自身を除く): 558102752

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 49, 56, 62, 64, 98, 112, 124, 128, 196, 217, 224, 248, 256, 392, 434, 448, 496, 512, 784, 868, 896, 992, 1024, 1519, 1568, 1736, 1792, 1984, 2048, 3038, 3136, 3472, 3584, 3968, 4096, 6076, 6272, 6944, 7168, 7936, 8192, 12152, 12544, 13888, 14336, 15872, 16384, 24304, 25088, 27776, 28672, 31744, 32768, 48608, 50176, 55552, 57344, 63488, 65536, 97216, 100352, 111104, 114688, 126976, 131072, 194432, 200704, 222208, 229376, 253952, 262144, 388864, 401408, 444416, 458752, 507904, 777728, 802816, 888832, 917504, 1015808, 1555456, 1605632, 1777664, 1835008, 2031616, 3110912, 3211264, 3555328, 4063232, 6221824, 6422528, 7110656, 8126464, 12443648, 12845056, 14221312, 24887296, 28442624, 49774592, 56885248, 99549184, 199098368, 398196736]

約数ペア:

[(1, 398196736), (2, 199098368), (4, 99549184), (7, 56885248), (8, 49774592), (14, 28442624), (16, 24887296), (28, 14221312), (31, 12845056), (32, 12443648), (49, 8126464), (56, 7110656), (62, 6422528), (64, 6221824), (98, 4063232), (112, 3555328), (124, 3211264), (128, 3110912), (196, 2031616), (217, 1835008), (224, 1777664), (248, 1605632), (256, 1555456), (392, 1015808), (434, 917504), (448, 888832), (496, 802816), (512, 777728), (784, 507904), (868, 458752), (896, 444416), (992, 401408), (1024, 388864), (1519, 262144), (1568, 253952), (1736, 229376), (1792, 222208), (1984, 200704), (2048, 194432), (3038, 131072), (3136, 126976), (3472, 114688), (3584, 111104), (3968, 100352), (4096, 97216), (6076, 65536), (6272, 63488), (6944, 57344), (7168, 55552), (7936, 50176), (8192, 48608), (12152, 32768), (12544, 31744), (13888, 28672), (14336, 27776), (15872, 25088), (16384, 24304)]