25558004

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{22109}}^1$

素因数の和:22147

約数の個数: 18

約数和(自身を含む): 47514390

約数和(自身を除く): 21956386

約数列:

[1, 2, 4, 17, 34, 68, 289, 578, 1156, 22109, 44218, 88436, 375853, 751706, 1503412, 6389501, 12779002, 25558004]

約数ペア:

[(1, 25558004), (2, 12779002), (4, 6389501), (17, 1503412), (34, 751706), (68, 375853), (289, 88436), (578, 44218), (1156, 22109)]