7851140

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 18192384

約数和(自身を除く): 10341244

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 127, 220, 254, 281, 508, 562, 635, 1124, 1270, 1397, 1405, 2540, 2794, 2810, 3091, 5588, 5620, 6182, 6985, 12364, 13970, 15455, 27940, 30910, 35687, 61820, 71374, 142748, 178435, 356870, 392557, 713740, 785114, 1570228, 1962785, 3925570, 7851140]

約数ペア:

[(1, 7851140), (2, 3925570), (4, 1962785), (5, 1570228), (10, 785114), (11, 713740), (20, 392557), (22, 356870), (44, 178435), (55, 142748), (110, 71374), (127, 61820), (220, 35687), (254, 30910), (281, 27940), (508, 15455), (562, 13970), (635, 12364), (1124, 6985), (1270, 6182), (1397, 5620), (1405, 5588), (2540, 3091), (2794, 2810)]