285350

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{439}}^1$

素因数の和:464

約数の個数: 24

約数和(自身を含む): 572880

約数和(自身を除く): 287530

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325, 439, 650, 878, 2195, 4390, 5707, 10975, 11414, 21950, 28535, 57070, 142675, 285350]

約数ペア:

[(1, 285350), (2, 142675), (5, 57070), (10, 28535), (13, 21950), (25, 11414), (26, 10975), (50, 5707), (65, 4390), (130, 2195), (325, 878), (439, 650)]