320025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{251}}^1$

素因数の和:281

約数の個数: 24

約数和(自身を含む): 562464

約数和(自身を除く): 242439

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 251, 255, 425, 753, 1255, 1275, 3765, 4267, 6275, 12801, 18825, 21335, 64005, 106675, 320025]

約数ペア:

[(1, 320025), (3, 106675), (5, 64005), (15, 21335), (17, 18825), (25, 12801), (51, 6275), (75, 4267), (85, 3765), (251, 1275), (255, 1255), (425, 753)]