646569728

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{113}}^1$

素因数の和:270

約数の個数: 144

約数和(自身を含む): 1550954496

約数和(自身を除く): 904384768

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 103, 112, 113, 124, 128, 206, 217, 224, 226, 248, 256, 412, 434, 448, 452, 496, 721, 791, 824, 868, 896, 904, 992, 1442, 1582, 1648, 1736, 1792, 1808, 1984, 2884, 3164, 3193, 3296, 3472, 3503, 3616, 3968, 5768, 6328, 6386, 6592, 6944, 7006, 7232, 7936, 11536, 11639, 12656, 12772, 13184, 13888, 14012, 14464, 22351, 23072, 23278, 24521, 25312, 25544, 26368, 27776, 28024, 28928, 44702, 46144, 46556, 49042, 50624, 51088, 55552, 56048, 81473, 89404, 92288, 93112, 98084, 101248, 102176, 112096, 162946, 178808, 184576, 186224, 196168, 202496, 204352, 224192, 325892, 357616, 360809, 372448, 392336, 408704, 448384, 651784, 715232, 721618, 744896, 784672, 817408, 896768, 1303568, 1430464, 1443236, 1489792, 1569344, 2525663, 2607136, 2860928, 2886472, 2979584, 3138688, 5051326, 5214272, 5721856, 5772944, 6277376, 10102652, 10428544, 11545888, 20205304, 20857088, 23091776, 40410608, 46183552, 80821216, 92367104, 161642432, 323284864, 646569728]

約数ペア:

[(1, 646569728), (2, 323284864), (4, 161642432), (7, 92367104), (8, 80821216), (14, 46183552), (16, 40410608), (28, 23091776), (31, 20857088), (32, 20205304), (56, 11545888), (62, 10428544), (64, 10102652), (103, 6277376), (112, 5772944), (113, 5721856), (124, 5214272), (128, 5051326), (206, 3138688), (217, 2979584), (224, 2886472), (226, 2860928), (248, 2607136), (256, 2525663), (412, 1569344), (434, 1489792), (448, 1443236), (452, 1430464), (496, 1303568), (721, 896768), (791, 817408), (824, 784672), (868, 744896), (896, 721618), (904, 715232), (992, 651784), (1442, 448384), (1582, 408704), (1648, 392336), (1736, 372448), (1792, 360809), (1808, 357616), (1984, 325892), (2884, 224192), (3164, 204352), (3193, 202496), (3296, 196168), (3472, 186224), (3503, 184576), (3616, 178808), (3968, 162946), (5768, 112096), (6328, 102176), (6386, 101248), (6592, 98084), (6944, 93112), (7006, 92288), (7232, 89404), (7936, 81473), (11536, 56048), (11639, 55552), (12656, 51088), (12772, 50624), (13184, 49042), (13888, 46556), (14012, 46144), (14464, 44702), (22351, 28928), (23072, 28024), (23278, 27776), (24521, 26368), (25312, 25544)]