321272665

素因数分解:

$5^1\times 7^3\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:207

約数の個数: 64

約数和(自身を含む): 474969600

約数和(自身を除く): 153696935

約数列:

[1, 5, 7, 35, 37, 49, 61, 83, 185, 245, 259, 305, 343, 415, 427, 581, 1295, 1715, 1813, 2135, 2257, 2905, 2989, 3071, 4067, 5063, 9065, 11285, 12691, 14945, 15355, 15799, 20335, 20923, 21497, 25315, 28469, 35441, 63455, 78995, 104615, 107485, 110593, 142345, 150479, 177205, 187331, 248087, 552965, 752395, 774151, 936655, 1053353, 1240435, 1311317, 1736609, 3870755, 5266765, 6556585, 8683045, 9179219, 45896095, 64254533, 321272665]

約数ペア:

[(1, 321272665), (5, 64254533), (7, 45896095), (35, 9179219), (37, 8683045), (49, 6556585), (61, 5266765), (83, 3870755), (185, 1736609), (245, 1311317), (259, 1240435), (305, 1053353), (343, 936655), (415, 774151), (427, 752395), (581, 552965), (1295, 248087), (1715, 187331), (1813, 177205), (2135, 150479), (2257, 142345), (2905, 110593), (2989, 107485), (3071, 104615), (4067, 78995), (5063, 63455), (9065, 35441), (11285, 28469), (12691, 25315), (14945, 21497), (15355, 20923), (15799, 20335)]