28400455

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{7109}}^1$

素因数の和:7178

約数の個数: 16

約数和(自身を含む): 36858240

約数和(自身を除く): 8457785

約数列:

[1, 5, 17, 47, 85, 235, 799, 3995, 7109, 35545, 120853, 334123, 604265, 1670615, 5680091, 28400455]

約数ペア:

[(1, 28400455), (5, 5680091), (17, 1670615), (47, 604265), (85, 334123), (235, 120853), (799, 35545), (3995, 7109)]