188991380

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{555857}}^1$

素因数の和:555883

約数の個数: 24

約数和(自身を含む): 420228648

約数和(自身を除く): 231237268

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 555857, 1111714, 2223428, 2779285, 5558570, 9449569, 11117140, 18899138, 37798276, 47247845, 94495690, 188991380]

約数ペア:

[(1, 188991380), (2, 94495690), (4, 47247845), (5, 37798276), (10, 18899138), (17, 11117140), (20, 9449569), (34, 5558570), (68, 2779285), (85, 2223428), (170, 1111714), (340, 555857)]