19707220

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{75797}}^1$

素因数の和:75819

約数の個数: 24

約数和(自身を含む): 44569224

約数和(自身を除く): 24862004

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 75797, 151594, 303188, 378985, 757970, 985361, 1515940, 1970722, 3941444, 4926805, 9853610, 19707220]

約数ペア:

[(1, 19707220), (2, 9853610), (4, 4926805), (5, 3941444), (10, 1970722), (13, 1515940), (20, 985361), (26, 757970), (52, 378985), (65, 303188), (130, 151594), (260, 75797)]