256709390

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{269}}^1\times {\mathrm{13633}}^1$

素因数の和:13916

約数の個数: 32

約数和(自身を含む): 530089920

約数和(自身を除く): 273380530

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 269, 538, 1345, 1883, 2690, 3766, 9415, 13633, 18830, 27266, 68165, 95431, 136330, 190862, 477155, 954310, 3667277, 7334554, 18336385, 25670939, 36672770, 51341878, 128354695, 256709390]

約数ペア:

[(1, 256709390), (2, 128354695), (5, 51341878), (7, 36672770), (10, 25670939), (14, 18336385), (35, 7334554), (70, 3667277), (269, 954310), (538, 477155), (1345, 190862), (1883, 136330), (2690, 95431), (3766, 68165), (9415, 27266), (13633, 18830)]