78902811

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{269}}^1$

素因数の和:420

約数の個数: 48

約数和(自身を含む): 129729600

約数和(自身を除く): 50826789

約数列:

[1, 3, 9, 13, 23, 39, 69, 109, 117, 207, 269, 299, 327, 807, 897, 981, 1417, 2421, 2507, 2691, 3497, 4251, 6187, 7521, 10491, 12753, 18561, 22563, 29321, 31473, 32591, 55683, 80431, 87963, 97773, 241293, 263889, 293319, 381173, 674383, 723879, 1143519, 2023149, 3430557, 6069447, 8766979, 26300937, 78902811]

約数ペア:

[(1, 78902811), (3, 26300937), (9, 8766979), (13, 6069447), (23, 3430557), (39, 2023149), (69, 1143519), (109, 723879), (117, 674383), (207, 381173), (269, 293319), (299, 263889), (327, 241293), (807, 97773), (897, 87963), (981, 80431), (1417, 55683), (2421, 32591), (2507, 31473), (2691, 29321), (3497, 22563), (4251, 18561), (6187, 12753), (7521, 10491)]