20615604

素因数分解:

$2^2\times 3^1\times {\mathrm{89}}^1\times {\mathrm{97}}^1\times {\mathrm{199}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 49392000

約数和(自身を除く): 28776396

約数列:

[1, 2, 3, 4, 6, 12, 89, 97, 178, 194, 199, 267, 291, 356, 388, 398, 534, 582, 597, 796, 1068, 1164, 1194, 2388, 8633, 17266, 17711, 19303, 25899, 34532, 35422, 38606, 51798, 53133, 57909, 70844, 77212, 103596, 106266, 115818, 212532, 231636, 1717967, 3435934, 5153901, 6871868, 10307802, 20615604]

約数ペア:

[(1, 20615604), (2, 10307802), (3, 6871868), (4, 5153901), (6, 3435934), (12, 1717967), (89, 231636), (97, 212532), (178, 115818), (194, 106266), (199, 103596), (267, 77212), (291, 70844), (356, 57909), (388, 53133), (398, 51798), (534, 38606), (582, 35422), (597, 34532), (796, 25899), (1068, 19303), (1164, 17711), (1194, 17266), (2388, 8633)]