187426780

素因数分解:

$2^2\times 5^1\times {\mathrm{2143}}^1\times {\mathrm{4373}}^1$

素因数の和:6525

約数の個数: 24

約数和(自身を含む): 393869952

約数和(自身を除く): 206443172

約数列:

[1, 2, 4, 5, 10, 20, 2143, 4286, 4373, 8572, 8746, 10715, 17492, 21430, 21865, 42860, 43730, 87460, 9371339, 18742678, 37485356, 46856695, 93713390, 187426780]

約数ペア:

[(1, 187426780), (2, 93713390), (4, 46856695), (5, 37485356), (10, 18742678), (20, 9371339), (2143, 87460), (4286, 43730), (4373, 42860), (8572, 21865), (8746, 21430), (10715, 17492)]