625664

素因数分解:

$2^{10}\times {\mathrm{13}}^1\times {\mathrm{47}}^1$

素因数の和:80

約数の個数: 44

約数和(自身を含む): 1375584

約数和(自身を除く): 749920

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 47, 52, 64, 94, 104, 128, 188, 208, 256, 376, 416, 512, 611, 752, 832, 1024, 1222, 1504, 1664, 2444, 3008, 3328, 4888, 6016, 6656, 9776, 12032, 13312, 19552, 24064, 39104, 48128, 78208, 156416, 312832, 625664]

約数ペア:

[(1, 625664), (2, 312832), (4, 156416), (8, 78208), (13, 48128), (16, 39104), (26, 24064), (32, 19552), (47, 13312), (52, 12032), (64, 9776), (94, 6656), (104, 6016), (128, 4888), (188, 3328), (208, 3008), (256, 2444), (376, 1664), (416, 1504), (512, 1222), (611, 1024), (752, 832)]