28014140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{18191}}^1$

素因数の和:18218

約数の個数: 48

約数和(自身を含む): 73350144

約数和(自身を除く): 45336004

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 110, 140, 154, 220, 308, 385, 770, 1540, 18191, 36382, 72764, 90955, 127337, 181910, 200101, 254674, 363820, 400202, 509348, 636685, 800404, 1000505, 1273370, 1400707, 2001010, 2546740, 2801414, 4002020, 5602828, 7003535, 14007070, 28014140]

約数ペア:

[(1, 28014140), (2, 14007070), (4, 7003535), (5, 5602828), (7, 4002020), (10, 2801414), (11, 2546740), (14, 2001010), (20, 1400707), (22, 1273370), (28, 1000505), (35, 800404), (44, 636685), (55, 509348), (70, 400202), (77, 363820), (110, 254674), (140, 200101), (154, 181910), (220, 127337), (308, 90955), (385, 72764), (770, 36382), (1540, 18191)]