39502780

素因数分解:

$2^2\times 5^1\times {\mathrm{1039}}^1\times {\mathrm{1901}}^1$

素因数の和:2949

約数の個数: 24

約数和(自身を含む): 83079360

約数和(自身を除く): 43576580

約数列:

[1, 2, 4, 5, 10, 20, 1039, 1901, 2078, 3802, 4156, 5195, 7604, 9505, 10390, 19010, 20780, 38020, 1975139, 3950278, 7900556, 9875695, 19751390, 39502780]

約数ペア:

[(1, 39502780), (2, 19751390), (4, 9875695), (5, 7900556), (10, 3950278), (20, 1975139), (1039, 38020), (1901, 20780), (2078, 19010), (3802, 10390), (4156, 9505), (5195, 7604)]