19159475

素因数分解:

$5^2\times {\mathrm{79}}^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1$

素因数の和:287

約数の個数: 24

約数和(自身を含む): 24552000

約数和(自身を除く): 5392525

約数列:

[1, 5, 25, 79, 89, 109, 395, 445, 545, 1975, 2225, 2725, 7031, 8611, 9701, 35155, 43055, 48505, 175775, 215275, 242525, 766379, 3831895, 19159475]

約数ペア:

[(1, 19159475), (5, 3831895), (25, 766379), (79, 242525), (89, 215275), (109, 175775), (395, 48505), (445, 43055), (545, 35155), (1975, 9701), (2225, 8611), (2725, 7031)]