42857984

素因数分解:

$2^9\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1$

素因数の和:215

約数の個数: 80

約数和(自身を含む): 94868928

約数和(自身を除く): 52010944

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 47, 52, 64, 94, 104, 128, 137, 188, 208, 256, 274, 376, 416, 512, 548, 611, 752, 832, 1096, 1222, 1504, 1664, 1781, 2192, 2444, 3008, 3328, 3562, 4384, 4888, 6016, 6439, 6656, 7124, 8768, 9776, 12032, 12878, 14248, 17536, 19552, 24064, 25756, 28496, 35072, 39104, 51512, 56992, 70144, 78208, 83707, 103024, 113984, 156416, 167414, 206048, 227968, 312832, 334828, 412096, 455936, 669656, 824192, 911872, 1339312, 1648384, 2678624, 3296768, 5357248, 10714496, 21428992, 42857984]

約数ペア:

[(1, 42857984), (2, 21428992), (4, 10714496), (8, 5357248), (13, 3296768), (16, 2678624), (26, 1648384), (32, 1339312), (47, 911872), (52, 824192), (64, 669656), (94, 455936), (104, 412096), (128, 334828), (137, 312832), (188, 227968), (208, 206048), (256, 167414), (274, 156416), (376, 113984), (416, 103024), (512, 83707), (548, 78208), (611, 70144), (752, 56992), (832, 51512), (1096, 39104), (1222, 35072), (1504, 28496), (1664, 25756), (1781, 24064), (2192, 19552), (2444, 17536), (3008, 14248), (3328, 12878), (3562, 12032), (4384, 9776), (4888, 8768), (6016, 7124), (6439, 6656)]