263231480

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{160507}}^1$

素因数の和:160559

約数の個数: 32

約数和(自身を含む): 606720240

約数和(自身を除く): 343488760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 160507, 321014, 642028, 802535, 1284056, 1605070, 3210140, 6420280, 6580787, 13161574, 26323148, 32903935, 52646296, 65807870, 131615740, 263231480]

約数ペア:

[(1, 263231480), (2, 131615740), (4, 65807870), (5, 52646296), (8, 32903935), (10, 26323148), (20, 13161574), (40, 6580787), (41, 6420280), (82, 3210140), (164, 1605070), (205, 1284056), (328, 802535), (410, 642028), (820, 321014), (1640, 160507)]