18120275

素因数分解:

$5^2\times {\mathrm{31}}^1\times {\mathrm{103}}^1\times {\mathrm{227}}^1$

素因数の和:371

約数の個数: 24

約数和(自身を含む): 23522304

約数和(自身を除く): 5402029

約数列:

[1, 5, 25, 31, 103, 155, 227, 515, 775, 1135, 2575, 3193, 5675, 7037, 15965, 23381, 35185, 79825, 116905, 175925, 584525, 724811, 3624055, 18120275]

約数ペア:

[(1, 18120275), (5, 3624055), (25, 724811), (31, 584525), (103, 175925), (155, 116905), (227, 79825), (515, 35185), (775, 23381), (1135, 15965), (2575, 7037), (3193, 5675)]