208336720

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{853}}^1$

素因数の和:980

約数の個数: 80

約数和(自身を含む): 503217792

約数和(自身を除く): 294881072

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 71, 80, 86, 142, 172, 215, 284, 344, 355, 430, 568, 688, 710, 853, 860, 1136, 1420, 1706, 1720, 2840, 3053, 3412, 3440, 4265, 5680, 6106, 6824, 8530, 12212, 13648, 15265, 17060, 24424, 30530, 34120, 36679, 48848, 60563, 61060, 68240, 73358, 121126, 122120, 146716, 183395, 242252, 244240, 293432, 302815, 366790, 484504, 586864, 605630, 733580, 969008, 1211260, 1467160, 2422520, 2604209, 2934320, 4845040, 5208418, 10416836, 13021045, 20833672, 26042090, 41667344, 52084180, 104168360, 208336720]

約数ペア:

[(1, 208336720), (2, 104168360), (4, 52084180), (5, 41667344), (8, 26042090), (10, 20833672), (16, 13021045), (20, 10416836), (40, 5208418), (43, 4845040), (71, 2934320), (80, 2604209), (86, 2422520), (142, 1467160), (172, 1211260), (215, 969008), (284, 733580), (344, 605630), (355, 586864), (430, 484504), (568, 366790), (688, 302815), (710, 293432), (853, 244240), (860, 242252), (1136, 183395), (1420, 146716), (1706, 122120), (1720, 121126), (2840, 73358), (3053, 68240), (3412, 61060), (3440, 60563), (4265, 48848), (5680, 36679), (6106, 34120), (6824, 30530), (8530, 24424), (12212, 17060), (13648, 15265)]