198160075

素因数分解:

$5^2\times {\mathrm{17}}^2\times {\mathrm{27427}}^1$

素因数の和:27471

約数の個数: 18

約数和(自身を含む): 261032276

約数和(自身を除く): 62872201

約数列:

[1, 5, 17, 25, 85, 289, 425, 1445, 7225, 27427, 137135, 466259, 685675, 2331295, 7926403, 11656475, 39632015, 198160075]

約数ペア:

[(1, 198160075), (5, 39632015), (17, 11656475), (25, 7926403), (85, 2331295), (289, 685675), (425, 466259), (1445, 137135), (7225, 27427)]