221984420

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1585603}}^1$

素因数の和:1585619

約数の個数: 24

約数和(自身を含む): 532762944

約数和(自身を除く): 310778524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1585603, 3171206, 6342412, 7928015, 11099221, 15856030, 22198442, 31712060, 44396884, 55496105, 110992210, 221984420]

約数ペア:

[(1, 221984420), (2, 110992210), (4, 55496105), (5, 44396884), (7, 31712060), (10, 22198442), (14, 15856030), (20, 11099221), (28, 7928015), (35, 6342412), (70, 3171206), (140, 1585603)]