640548896

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{66947}}^1$

素因数の和:66993

約数の個数: 48

約数和(自身を含む): 1417155264

約数和(自身を除く): 776606368

約数列:

[1, 2, 4, 8, 13, 16, 23, 26, 32, 46, 52, 92, 104, 184, 208, 299, 368, 416, 598, 736, 1196, 2392, 4784, 9568, 66947, 133894, 267788, 535576, 870311, 1071152, 1539781, 1740622, 2142304, 3079562, 3481244, 6159124, 6962488, 12318248, 13924976, 20017153, 24636496, 27849952, 40034306, 49272992, 80068612, 160137224, 320274448, 640548896]

約数ペア:

[(1, 640548896), (2, 320274448), (4, 160137224), (8, 80068612), (13, 49272992), (16, 40034306), (23, 27849952), (26, 24636496), (32, 20017153), (46, 13924976), (52, 12318248), (92, 6962488), (104, 6159124), (184, 3481244), (208, 3079562), (299, 2142304), (368, 1740622), (416, 1539781), (598, 1071152), (736, 870311), (1196, 535576), (2392, 267788), (4784, 133894), (9568, 66947)]