56816540

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2557}}^1$

素因数の和:2678

約数の個数: 48

約数和(自身を含む): 131501664

約数和(自身を除く): 74685124

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 101, 110, 202, 220, 404, 505, 1010, 1111, 2020, 2222, 2557, 4444, 5114, 5555, 10228, 11110, 12785, 22220, 25570, 28127, 51140, 56254, 112508, 140635, 258257, 281270, 516514, 562540, 1033028, 1291285, 2582570, 2840827, 5165140, 5681654, 11363308, 14204135, 28408270, 56816540]

約数ペア:

[(1, 56816540), (2, 28408270), (4, 14204135), (5, 11363308), (10, 5681654), (11, 5165140), (20, 2840827), (22, 2582570), (44, 1291285), (55, 1033028), (101, 562540), (110, 516514), (202, 281270), (220, 258257), (404, 140635), (505, 112508), (1010, 56254), (1111, 51140), (2020, 28127), (2222, 25570), (2557, 22220), (4444, 12785), (5114, 11110), (5555, 10228)]