81281524

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{61}}^2\times {\mathrm{127}}^1$

素因数の和:296

約数の個数: 36

約数和(自身を含む): 149140992

約数和(自身を除く): 67859468

約数列:

[1, 2, 4, 43, 61, 86, 122, 127, 172, 244, 254, 508, 2623, 3721, 5246, 5461, 7442, 7747, 10492, 10922, 14884, 15494, 21844, 30988, 160003, 320006, 333121, 472567, 640012, 666242, 945134, 1332484, 1890268, 20320381, 40640762, 81281524]

約数ペア:

[(1, 81281524), (2, 40640762), (4, 20320381), (43, 1890268), (61, 1332484), (86, 945134), (122, 666242), (127, 640012), (172, 472567), (244, 333121), (254, 320006), (508, 160003), (2623, 30988), (3721, 21844), (5246, 15494), (5461, 14884), (7442, 10922), (7747, 10492)]