28449820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{203213}}^1$

素因数の和:203229

約数の個数: 24

約数和(自身を含む): 68279904

約数和(自身を除く): 39830084

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 203213, 406426, 812852, 1016065, 1422491, 2032130, 2844982, 4064260, 5689964, 7112455, 14224910, 28449820]

約数ペア:

[(1, 28449820), (2, 14224910), (4, 7112455), (5, 5689964), (7, 4064260), (10, 2844982), (14, 2032130), (20, 1422491), (28, 1016065), (35, 812852), (70, 406426), (140, 203213)]