81410840

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{479}}^1\times {\mathrm{607}}^1$

素因数の和:1104

約数の個数: 64

約数和(自身を含む): 210124800

約数和(自身を除く): 128713960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 479, 607, 958, 1214, 1916, 2395, 2428, 3035, 3353, 3832, 4249, 4790, 4856, 6070, 6706, 8498, 9580, 12140, 13412, 16765, 16996, 19160, 21245, 24280, 26824, 33530, 33992, 42490, 67060, 84980, 134120, 169960, 290753, 581506, 1163012, 1453765, 2035271, 2326024, 2907530, 4070542, 5815060, 8141084, 10176355, 11630120, 16282168, 20352710, 40705420, 81410840]

約数ペア:

[(1, 81410840), (2, 40705420), (4, 20352710), (5, 16282168), (7, 11630120), (8, 10176355), (10, 8141084), (14, 5815060), (20, 4070542), (28, 2907530), (35, 2326024), (40, 2035271), (56, 1453765), (70, 1163012), (140, 581506), (280, 290753), (479, 169960), (607, 134120), (958, 84980), (1214, 67060), (1916, 42490), (2395, 33992), (2428, 33530), (3035, 26824), (3353, 24280), (3832, 21245), (4249, 19160), (4790, 16996), (4856, 16765), (6070, 13412), (6706, 12140), (8498, 9580)]