25999940

素因数分解:

$2^2\times 5^1\times {\mathrm{911}}^1\times {\mathrm{1427}}^1$

素因数の和:2347

約数の個数: 24

約数和(自身を含む): 54698112

約数和(自身を除く): 28698172

約数列:

[1, 2, 4, 5, 10, 20, 911, 1427, 1822, 2854, 3644, 4555, 5708, 7135, 9110, 14270, 18220, 28540, 1299997, 2599994, 5199988, 6499985, 12999970, 25999940]

約数ペア:

[(1, 25999940), (2, 12999970), (4, 6499985), (5, 5199988), (10, 2599994), (20, 1299997), (911, 28540), (1427, 18220), (1822, 14270), (2854, 9110), (3644, 7135), (4555, 5708)]