51904905

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:278

約数の個数: 64

約数和(自身を含む): 95219712

約数和(自身を除く): 43314807

約数列:

[1, 3, 5, 13, 15, 23, 39, 65, 69, 71, 115, 163, 195, 213, 299, 345, 355, 489, 815, 897, 923, 1065, 1495, 1633, 2119, 2445, 2769, 3749, 4485, 4615, 4899, 6357, 8165, 10595, 11247, 11573, 13845, 18745, 21229, 24495, 31785, 34719, 48737, 56235, 57865, 63687, 106145, 146211, 150449, 173595, 243685, 266179, 318435, 451347, 731055, 752245, 798537, 1330895, 2256735, 3460327, 3992685, 10380981, 17301635, 51904905]

約数ペア:

[(1, 51904905), (3, 17301635), (5, 10380981), (13, 3992685), (15, 3460327), (23, 2256735), (39, 1330895), (65, 798537), (69, 752245), (71, 731055), (115, 451347), (163, 318435), (195, 266179), (213, 243685), (299, 173595), (345, 150449), (355, 146211), (489, 106145), (815, 63687), (897, 57865), (923, 56235), (1065, 48737), (1495, 34719), (1633, 31785), (2119, 24495), (2445, 21229), (2769, 18745), (3749, 13845), (4485, 11573), (4615, 11247), (4899, 10595), (6357, 8165)]