720295623

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{80923}}^1$

素因数の和:80995

約数の個数: 24

約数和(自身を含む): 1110924672

約数和(自身を除く): 390629049

約数列:

[1, 3, 9, 23, 43, 69, 129, 207, 387, 989, 2967, 8901, 80923, 242769, 728307, 1861229, 3479689, 5583687, 10439067, 16751061, 31317201, 80032847, 240098541, 720295623]

約数ペア:

[(1, 720295623), (3, 240098541), (9, 80032847), (23, 31317201), (43, 16751061), (69, 10439067), (129, 5583687), (207, 3479689), (387, 1861229), (989, 728307), (2967, 242769), (8901, 80923)]