19943168

素因数分解:

$2^8\times 7^1\times {\mathrm{31}}^1\times {\mathrm{359}}^1$

素因数の和:413

約数の個数: 72

約数和(自身を含む): 47093760

約数和(自身を除く): 27150592

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 64, 112, 124, 128, 217, 224, 248, 256, 359, 434, 448, 496, 718, 868, 896, 992, 1436, 1736, 1792, 1984, 2513, 2872, 3472, 3968, 5026, 5744, 6944, 7936, 10052, 11129, 11488, 13888, 20104, 22258, 22976, 27776, 40208, 44516, 45952, 55552, 77903, 80416, 89032, 91904, 155806, 160832, 178064, 311612, 321664, 356128, 623224, 643328, 712256, 1246448, 1424512, 2492896, 2849024, 4985792, 9971584, 19943168]

約数ペア:

[(1, 19943168), (2, 9971584), (4, 4985792), (7, 2849024), (8, 2492896), (14, 1424512), (16, 1246448), (28, 712256), (31, 643328), (32, 623224), (56, 356128), (62, 321664), (64, 311612), (112, 178064), (124, 160832), (128, 155806), (217, 91904), (224, 89032), (248, 80416), (256, 77903), (359, 55552), (434, 45952), (448, 44516), (496, 40208), (718, 27776), (868, 22976), (896, 22258), (992, 20104), (1436, 13888), (1736, 11488), (1792, 11129), (1984, 10052), (2513, 7936), (2872, 6944), (3472, 5744), (3968, 5026)]