20171397904

素因数分解:

$2^4\times 7^1\times {\mathrm{1327}}^1\times {\mathrm{135721}}^1$

素因数の和:137063

約数の個数: 40

約数和(自身を含む): 44699226368

約数和(自身を除く): 24527828464

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 1327, 2654, 5308, 9289, 10616, 18578, 21232, 37156, 74312, 135721, 148624, 271442, 542884, 950047, 1085768, 1900094, 2171536, 3800188, 7600376, 15200752, 180101767, 360203534, 720407068, 1260712369, 1440814136, 2521424738, 2881628272, 5042849476, 10085698952, 20171397904]

約数ペア:

[(1, 20171397904), (2, 10085698952), (4, 5042849476), (7, 2881628272), (8, 2521424738), (14, 1440814136), (16, 1260712369), (28, 720407068), (56, 360203534), (112, 180101767), (1327, 15200752), (2654, 7600376), (5308, 3800188), (9289, 2171536), (10616, 1900094), (18578, 1085768), (21232, 950047), (37156, 542884), (74312, 271442), (135721, 148624)]