225217785

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67939}}^1$

素因数の和:67977

約数の個数: 32

約数和(自身を含む): 410901120

約数和(自身を除く): 185683335

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 67939, 203817, 339695, 883207, 1019085, 1154963, 2649621, 3464889, 4416035, 5774815, 13248105, 15014519, 17324445, 45043557, 75072595, 225217785]

約数ペア:

[(1, 225217785), (3, 75072595), (5, 45043557), (13, 17324445), (15, 15014519), (17, 13248105), (39, 5774815), (51, 4416035), (65, 3464889), (85, 2649621), (195, 1154963), (221, 1019085), (255, 883207), (663, 339695), (1105, 203817), (3315, 67939)]