81494800

素因数分解:

$2^4\times 5^2\times {\mathrm{19}}^1\times {\mathrm{10723}}^1$

素因数の和:10760

約数の個数: 60

約数和(自身を含む): 206115280

約数和(自身を除く): 124620480

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 38, 40, 50, 76, 80, 95, 100, 152, 190, 200, 304, 380, 400, 475, 760, 950, 1520, 1900, 3800, 7600, 10723, 21446, 42892, 53615, 85784, 107230, 171568, 203737, 214460, 268075, 407474, 428920, 536150, 814948, 857840, 1018685, 1072300, 1629896, 2037370, 2144600, 3259792, 4074740, 4289200, 5093425, 8149480, 10186850, 16298960, 20373700, 40747400, 81494800]

約数ペア:

[(1, 81494800), (2, 40747400), (4, 20373700), (5, 16298960), (8, 10186850), (10, 8149480), (16, 5093425), (19, 4289200), (20, 4074740), (25, 3259792), (38, 2144600), (40, 2037370), (50, 1629896), (76, 1072300), (80, 1018685), (95, 857840), (100, 814948), (152, 536150), (190, 428920), (200, 407474), (304, 268075), (380, 214460), (400, 203737), (475, 171568), (760, 107230), (950, 85784), (1520, 53615), (1900, 42892), (3800, 21446), (7600, 10723)]