81749475

素因数分解:

$3^2\times 5^2\times {\mathrm{23}}^1\times {\mathrm{15797}}^1$

素因数の和:15836

約数の個数: 36

約数和(自身を含む): 152798256

約数和(自身を除く): 71048781

約数列:

[1, 3, 5, 9, 15, 23, 25, 45, 69, 75, 115, 207, 225, 345, 575, 1035, 1725, 5175, 15797, 47391, 78985, 142173, 236955, 363331, 394925, 710865, 1089993, 1184775, 1816655, 3269979, 3554325, 5449965, 9083275, 16349895, 27249825, 81749475]

約数ペア:

[(1, 81749475), (3, 27249825), (5, 16349895), (9, 9083275), (15, 5449965), (23, 3554325), (25, 3269979), (45, 1816655), (69, 1184775), (75, 1089993), (115, 710865), (207, 394925), (225, 363331), (345, 236955), (575, 142173), (1035, 78985), (1725, 47391), (5175, 15797)]