17887940

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{18253}}^1$

素因数の和:18276

約数の個数: 36

約数和(自身を含む): 43700076

約数和(自身を除く): 25812136

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 18253, 36506, 73012, 91265, 127771, 182530, 255542, 365060, 511084, 638855, 894397, 1277710, 1788794, 2555420, 3577588, 4471985, 8943970, 17887940]

約数ペア:

[(1, 17887940), (2, 8943970), (4, 4471985), (5, 3577588), (7, 2555420), (10, 1788794), (14, 1277710), (20, 894397), (28, 638855), (35, 511084), (49, 365060), (70, 255542), (98, 182530), (140, 127771), (196, 91265), (245, 73012), (490, 36506), (980, 18253)]