260540

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{1861}}^1$

素因数の和:1877

約数の個数: 24

約数和(自身を含む): 625632

約数和(自身を除く): 365092

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 1861, 3722, 7444, 9305, 13027, 18610, 26054, 37220, 52108, 65135, 130270, 260540]

約数ペア:

[(1, 260540), (2, 130270), (4, 65135), (5, 52108), (7, 37220), (10, 26054), (14, 18610), (20, 13027), (28, 9305), (35, 7444), (70, 3722), (140, 1861)]