5444140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{20939}}^1$

素因数の和:20961

約数の個数: 24

約数和(自身を含む): 12312720

約数和(自身を除く): 6868580

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 20939, 41878, 83756, 104695, 209390, 272207, 418780, 544414, 1088828, 1361035, 2722070, 5444140]

約数ペア:

[(1, 5444140), (2, 2722070), (4, 1361035), (5, 1088828), (10, 544414), (13, 418780), (20, 272207), (26, 209390), (52, 104695), (65, 83756), (130, 41878), (260, 20939)]