7640220

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{18191}}^1$

素因数の和:18210

約数の個数: 48

約数和(自身を含む): 24450048

約数和(自身を除く): 16809828

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 18191, 36382, 54573, 72764, 90955, 109146, 127337, 181910, 218292, 254674, 272865, 363820, 382011, 509348, 545730, 636685, 764022, 1091460, 1273370, 1528044, 1910055, 2546740, 3820110, 7640220]

約数ペア:

[(1, 7640220), (2, 3820110), (3, 2546740), (4, 1910055), (5, 1528044), (6, 1273370), (7, 1091460), (10, 764022), (12, 636685), (14, 545730), (15, 509348), (20, 382011), (21, 363820), (28, 272865), (30, 254674), (35, 218292), (42, 181910), (60, 127337), (70, 109146), (84, 90955), (105, 72764), (140, 54573), (210, 36382), (420, 18191)]