61819780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{487}}^1\times {\mathrm{577}}^1$

素因数の和:1084

約数の個数: 48

約数和(自身を含む): 142160256

約数和(自身を除く): 80340476

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 487, 577, 974, 1154, 1948, 2308, 2435, 2885, 4870, 5357, 5770, 6347, 9740, 10714, 11540, 12694, 21428, 25388, 26785, 31735, 53570, 63470, 107140, 126940, 280999, 561998, 1123996, 1404995, 2809990, 3090989, 5619980, 6181978, 12363956, 15454945, 30909890, 61819780]

約数ペア:

[(1, 61819780), (2, 30909890), (4, 15454945), (5, 12363956), (10, 6181978), (11, 5619980), (20, 3090989), (22, 2809990), (44, 1404995), (55, 1123996), (110, 561998), (220, 280999), (487, 126940), (577, 107140), (974, 63470), (1154, 53570), (1948, 31735), (2308, 26785), (2435, 25388), (2885, 21428), (4870, 12694), (5357, 11540), (5770, 10714), (6347, 9740)]