78647499

素因数分解:

$3^2\times 7^3\times {\mathrm{73}}^1\times {\mathrm{349}}^1$

素因数の和:449

約数の個数: 48

約数和(自身を含む): 134680000

約数和(自身を除く): 56032501

約数列:

[1, 3, 7, 9, 21, 49, 63, 73, 147, 219, 343, 349, 441, 511, 657, 1029, 1047, 1533, 2443, 3087, 3141, 3577, 4599, 7329, 10731, 17101, 21987, 25039, 25477, 32193, 51303, 75117, 76431, 119707, 153909, 178339, 225351, 229293, 359121, 535017, 1077363, 1248373, 1605051, 3745119, 8738611, 11235357, 26215833, 78647499]

約数ペア:

[(1, 78647499), (3, 26215833), (7, 11235357), (9, 8738611), (21, 3745119), (49, 1605051), (63, 1248373), (73, 1077363), (147, 535017), (219, 359121), (343, 229293), (349, 225351), (441, 178339), (511, 153909), (657, 119707), (1029, 76431), (1047, 75117), (1533, 51303), (2443, 32193), (3087, 25477), (3141, 25039), (3577, 21987), (4599, 17101), (7329, 10731)]