1780994578

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{83}}^1\times {\mathrm{431}}^1$

素因数の和:631

約数の個数: 64

約数和(自身を含む): 3093479424

約数和(自身を除く): 1312484846

約数列:

[1, 2, 11, 22, 31, 62, 73, 83, 146, 166, 341, 431, 682, 803, 862, 913, 1606, 1826, 2263, 2573, 4526, 4741, 5146, 6059, 9482, 12118, 13361, 24893, 26722, 28303, 31463, 35773, 49786, 56606, 62926, 66649, 71546, 133298, 146971, 187829, 293942, 346093, 375658, 393503, 692186, 787006, 975353, 1108963, 1950706, 2066119, 2217926, 2611429, 4132238, 5222858, 10728883, 12198593, 21457766, 24397186, 28725719, 57451438, 80954299, 161908598, 890497289, 1780994578]

約数ペア:

[(1, 1780994578), (2, 890497289), (11, 161908598), (22, 80954299), (31, 57451438), (62, 28725719), (73, 24397186), (83, 21457766), (146, 12198593), (166, 10728883), (341, 5222858), (431, 4132238), (682, 2611429), (803, 2217926), (862, 2066119), (913, 1950706), (1606, 1108963), (1826, 975353), (2263, 787006), (2573, 692186), (4526, 393503), (4741, 375658), (5146, 346093), (6059, 293942), (9482, 187829), (12118, 146971), (13361, 133298), (24893, 71546), (26722, 66649), (28303, 62926), (31463, 56606), (35773, 49786)]