80742704

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^2\times {\mathrm{1997}}^1$

素因数の和:2050

約数の個数: 60

約数和(自身を含む): 188787024

約数和(自身を除く): 108044320

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 361, 532, 722, 1064, 1444, 1997, 2128, 2527, 2888, 3994, 5054, 5776, 7988, 10108, 13979, 15976, 20216, 27958, 31952, 37943, 40432, 55916, 75886, 111832, 151772, 223664, 265601, 303544, 531202, 607088, 720917, 1062404, 1441834, 2124808, 2883668, 4249616, 5046419, 5767336, 10092838, 11534672, 20185676, 40371352, 80742704]

約数ペア:

[(1, 80742704), (2, 40371352), (4, 20185676), (7, 11534672), (8, 10092838), (14, 5767336), (16, 5046419), (19, 4249616), (28, 2883668), (38, 2124808), (56, 1441834), (76, 1062404), (112, 720917), (133, 607088), (152, 531202), (266, 303544), (304, 265601), (361, 223664), (532, 151772), (722, 111832), (1064, 75886), (1444, 55916), (1997, 40432), (2128, 37943), (2527, 31952), (2888, 27958), (3994, 20216), (5054, 15976), (5776, 13979), (7988, 10108)]