25491075

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{19993}}^1$

素因数の和:20023

約数の個数: 24

約数和(自身を含む): 44626608

約数和(自身を除く): 19135533

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 19993, 59979, 99965, 299895, 339881, 499825, 1019643, 1499475, 1699405, 5098215, 8497025, 25491075]

約数ペア:

[(1, 25491075), (3, 8497025), (5, 5098215), (15, 1699405), (17, 1499475), (25, 1019643), (51, 499825), (75, 339881), (85, 299895), (255, 99965), (425, 59979), (1275, 19993)]