2640428

素因数分解:

$2^2\times 7^1\times {\mathrm{181}}^1\times {\mathrm{521}}^1$

素因数の和:713

約数の個数: 24

約数和(自身を含む): 5320224

約数和(自身を除く): 2679796

約数列:

[1, 2, 4, 7, 14, 28, 181, 362, 521, 724, 1042, 1267, 2084, 2534, 3647, 5068, 7294, 14588, 94301, 188602, 377204, 660107, 1320214, 2640428]

約数ペア:

[(1, 2640428), (2, 1320214), (4, 660107), (7, 377204), (14, 188602), (28, 94301), (181, 14588), (362, 7294), (521, 5068), (724, 3647), (1042, 2534), (1267, 2084)]