6540880

素因数分解:

$2^4\times 5^1\times {\mathrm{81761}}^1$

素因数の和:81774

約数の個数: 20

約数和(自身を含む): 15207732

約数和(自身を除く): 8666852

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 81761, 163522, 327044, 408805, 654088, 817610, 1308176, 1635220, 3270440, 6540880]

約数ペア:

[(1, 6540880), (2, 3270440), (4, 1635220), (5, 1308176), (8, 817610), (10, 654088), (16, 408805), (20, 327044), (40, 163522), (80, 81761)]