25321390

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{1237}}^1$

素因数の和:1356

約数の個数: 32

約数和(自身を含む): 48133440

約数和(自身を除く): 22812050

約数列:

[1, 2, 5, 10, 23, 46, 89, 115, 178, 230, 445, 890, 1237, 2047, 2474, 4094, 6185, 10235, 12370, 20470, 28451, 56902, 110093, 142255, 220186, 284510, 550465, 1100930, 2532139, 5064278, 12660695, 25321390]

約数ペア:

[(1, 25321390), (2, 12660695), (5, 5064278), (10, 2532139), (23, 1100930), (46, 550465), (89, 284510), (115, 220186), (178, 142255), (230, 110093), (445, 56902), (890, 28451), (1237, 20470), (2047, 12370), (2474, 10235), (4094, 6185)]