20007720

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{373}}^1$

素因数の和:539

約数の個数: 96

約数和(自身を含む): 65637000

約数和(自身を除く): 45629280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 20, 24, 30, 36, 40, 45, 60, 72, 90, 120, 149, 180, 298, 360, 373, 447, 596, 745, 746, 894, 1119, 1192, 1341, 1490, 1492, 1788, 1865, 2235, 2238, 2682, 2980, 2984, 3357, 3576, 3730, 4470, 4476, 5364, 5595, 5960, 6705, 6714, 7460, 8940, 8952, 10728, 11190, 13410, 13428, 14920, 16785, 17880, 22380, 26820, 26856, 33570, 44760, 53640, 55577, 67140, 111154, 134280, 166731, 222308, 277885, 333462, 444616, 500193, 555770, 666924, 833655, 1000386, 1111540, 1333848, 1667310, 2000772, 2223080, 2500965, 3334620, 4001544, 5001930, 6669240, 10003860, 20007720]

約数ペア:

[(1, 20007720), (2, 10003860), (3, 6669240), (4, 5001930), (5, 4001544), (6, 3334620), (8, 2500965), (9, 2223080), (10, 2000772), (12, 1667310), (15, 1333848), (18, 1111540), (20, 1000386), (24, 833655), (30, 666924), (36, 555770), (40, 500193), (45, 444616), (60, 333462), (72, 277885), (90, 222308), (120, 166731), (149, 134280), (180, 111154), (298, 67140), (360, 55577), (373, 53640), (447, 44760), (596, 33570), (745, 26856), (746, 26820), (894, 22380), (1119, 17880), (1192, 16785), (1341, 14920), (1490, 13428), (1492, 13410), (1788, 11190), (1865, 10728), (2235, 8952), (2238, 8940), (2682, 7460), (2980, 6714), (2984, 6705), (3357, 5960), (3576, 5595), (3730, 5364), (4470, 4476)]