1221000225

素因数分解:

$3^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{128189}}^1$

素因数の和:128329

約数の個数: 24

約数和(自身を含む): 2034631680

約数和(自身を除く): 813631455

約数列:

[1, 3, 5, 15, 25, 75, 127, 381, 635, 1905, 3175, 9525, 128189, 384567, 640945, 1922835, 3204725, 9614175, 16280003, 48840009, 81400015, 244200045, 407000075, 1221000225]

約数ペア:

[(1, 1221000225), (3, 407000075), (5, 244200045), (15, 81400015), (25, 48840009), (75, 16280003), (127, 9614175), (381, 3204725), (635, 1922835), (1905, 640945), (3175, 384567), (9525, 128189)]