68782820

素因数分解:

$2^2\times 5^1\times {\mathrm{857}}^1\times {\mathrm{4013}}^1$

素因数の和:4879

約数の個数: 24

約数和(自身を含む): 144648504

約数和(自身を除く): 75865684

約数列:

[1, 2, 4, 5, 10, 20, 857, 1714, 3428, 4013, 4285, 8026, 8570, 16052, 17140, 20065, 40130, 80260, 3439141, 6878282, 13756564, 17195705, 34391410, 68782820]

約数ペア:

[(1, 68782820), (2, 34391410), (4, 17195705), (5, 13756564), (10, 6878282), (20, 3439141), (857, 80260), (1714, 40130), (3428, 20065), (4013, 17140), (4285, 16052), (8026, 8570)]