399196672

素因数分解:

$2^9\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3593}}^1$

素因数の和:3649

約数の個数: 80

約数和(自身を含む): 941225472

約数和(自身を除く): 542028800

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 434, 448, 496, 512, 868, 896, 992, 1736, 1792, 1984, 3472, 3584, 3593, 3968, 6944, 7186, 7936, 13888, 14372, 15872, 25151, 27776, 28744, 50302, 55552, 57488, 100604, 111104, 111383, 114976, 201208, 222766, 229952, 402416, 445532, 459904, 779681, 804832, 891064, 919808, 1559362, 1609664, 1782128, 1839616, 3118724, 3219328, 3564256, 6237448, 6438656, 7128512, 12474896, 12877312, 14257024, 24949792, 28514048, 49899584, 57028096, 99799168, 199598336, 399196672]

約数ペア:

[(1, 399196672), (2, 199598336), (4, 99799168), (7, 57028096), (8, 49899584), (14, 28514048), (16, 24949792), (28, 14257024), (31, 12877312), (32, 12474896), (56, 7128512), (62, 6438656), (64, 6237448), (112, 3564256), (124, 3219328), (128, 3118724), (217, 1839616), (224, 1782128), (248, 1609664), (256, 1559362), (434, 919808), (448, 891064), (496, 804832), (512, 779681), (868, 459904), (896, 445532), (992, 402416), (1736, 229952), (1792, 222766), (1984, 201208), (3472, 114976), (3584, 111383), (3593, 111104), (3968, 100604), (6944, 57488), (7186, 55552), (7936, 50302), (13888, 28744), (14372, 27776), (15872, 25151)]