788897860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{28439}}^1$

素因数の和:28540

約数の個数: 48

約数和(自身を含む): 1767830400

約数和(自身を除く): 978932540

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 73, 76, 95, 146, 190, 292, 365, 380, 730, 1387, 1460, 2774, 5548, 6935, 13870, 27740, 28439, 56878, 113756, 142195, 284390, 540341, 568780, 1080682, 2076047, 2161364, 2701705, 4152094, 5403410, 8304188, 10380235, 10806820, 20760470, 39444893, 41520940, 78889786, 157779572, 197224465, 394448930, 788897860]

約数ペア:

[(1, 788897860), (2, 394448930), (4, 197224465), (5, 157779572), (10, 78889786), (19, 41520940), (20, 39444893), (38, 20760470), (73, 10806820), (76, 10380235), (95, 8304188), (146, 5403410), (190, 4152094), (292, 2701705), (365, 2161364), (380, 2076047), (730, 1080682), (1387, 568780), (1460, 540341), (2774, 284390), (5548, 142195), (6935, 113756), (13870, 56878), (27740, 28439)]