265580

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{271}}^1$

素因数の和:294

約数の個数: 36

約数和(自身を含む): 651168

約数和(自身を除く): 385588

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 271, 490, 542, 980, 1084, 1355, 1897, 2710, 3794, 5420, 7588, 9485, 13279, 18970, 26558, 37940, 53116, 66395, 132790, 265580]

約数ペア:

[(1, 265580), (2, 132790), (4, 66395), (5, 53116), (7, 37940), (10, 26558), (14, 18970), (20, 13279), (28, 9485), (35, 7588), (49, 5420), (70, 3794), (98, 2710), (140, 1897), (196, 1355), (245, 1084), (271, 980), (490, 542)]