251808145

素因数分解:

$5^1\times {\mathrm{89}}^1\times {\mathrm{571}}^1\times {\mathrm{991}}^1$

素因数の和:1656

約数の個数: 16

約数和(自身を含む): 306408960

約数和(自身を除く): 54600815

約数列:

[1, 5, 89, 445, 571, 991, 2855, 4955, 50819, 88199, 254095, 440995, 565861, 2829305, 50361629, 251808145]

約数ペア:

[(1, 251808145), (5, 50361629), (89, 2829305), (445, 565861), (571, 440995), (991, 254095), (2855, 88199), (4955, 50819)]