26380880

素因数分解:

$2^4\times 5^1\times {\mathrm{329761}}^1$

素因数の和:329774

約数の個数: 20

約数和(自身を含む): 61335732

約数和(自身を除く): 34954852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 329761, 659522, 1319044, 1648805, 2638088, 3297610, 5276176, 6595220, 13190440, 26380880]

約数ペア:

[(1, 26380880), (2, 13190440), (4, 6595220), (5, 5276176), (8, 3297610), (10, 2638088), (16, 1648805), (20, 1319044), (40, 659522), (80, 329761)]