25300004

素因数分解:

$2^2\times {\mathrm{67}}^2\times {\mathrm{1409}}^1$

素因数の和:1547

約数の個数: 18

約数和(自身を含む): 44977590

約数和(自身を除く): 19677586

約数列:

[1, 2, 4, 67, 134, 268, 1409, 2818, 4489, 5636, 8978, 17956, 94403, 188806, 377612, 6325001, 12650002, 25300004]

約数ペア:

[(1, 25300004), (2, 12650002), (4, 6325001), (67, 377612), (134, 188806), (268, 94403), (1409, 17956), (2818, 8978), (4489, 5636)]