2171780

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8353}}^1$

素因数の和:8375

約数の個数: 24

約数和(自身を含む): 4912152

約数和(自身を除く): 2740372

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 8353, 16706, 33412, 41765, 83530, 108589, 167060, 217178, 434356, 542945, 1085890, 2171780]

約数ペア:

[(1, 2171780), (2, 1085890), (4, 542945), (5, 434356), (10, 217178), (13, 167060), (20, 108589), (26, 83530), (52, 41765), (65, 33412), (130, 16706), (260, 8353)]