20289690

素因数分解:

$2^1\times 3^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{677}}^1$

素因数の和:733

約数の個数: 80

約数和(自身を含む): 56113992

約数和(自身を除く): 35824302

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 81, 90, 111, 135, 162, 185, 222, 270, 333, 370, 405, 555, 666, 677, 810, 999, 1110, 1354, 1665, 1998, 2031, 2997, 3330, 3385, 4062, 4995, 5994, 6093, 6770, 9990, 10155, 12186, 14985, 18279, 20310, 25049, 29970, 30465, 36558, 50098, 54837, 60930, 75147, 91395, 109674, 125245, 150294, 182790, 225441, 250490, 274185, 375735, 450882, 548370, 676323, 751470, 1127205, 1352646, 2028969, 2254410, 3381615, 4057938, 6763230, 10144845, 20289690]

約数ペア:

[(1, 20289690), (2, 10144845), (3, 6763230), (5, 4057938), (6, 3381615), (9, 2254410), (10, 2028969), (15, 1352646), (18, 1127205), (27, 751470), (30, 676323), (37, 548370), (45, 450882), (54, 375735), (74, 274185), (81, 250490), (90, 225441), (111, 182790), (135, 150294), (162, 125245), (185, 109674), (222, 91395), (270, 75147), (333, 60930), (370, 54837), (405, 50098), (555, 36558), (666, 30465), (677, 29970), (810, 25049), (999, 20310), (1110, 18279), (1354, 14985), (1665, 12186), (1998, 10155), (2031, 9990), (2997, 6770), (3330, 6093), (3385, 5994), (4062, 4995)]