197998235

素因数分解:

$5^1\times {\mathrm{17}}^2\times {\mathrm{263}}^1\times {\mathrm{521}}^1$

素因数の和:823

約数の個数: 24

約数和(自身を含む): 253842336

約数和(自身を除く): 55844101

約数列:

[1, 5, 17, 85, 263, 289, 521, 1315, 1445, 2605, 4471, 8857, 22355, 44285, 76007, 137023, 150569, 380035, 685115, 752845, 2329391, 11646955, 39599647, 197998235]

約数ペア:

[(1, 197998235), (5, 39599647), (17, 11646955), (85, 2329391), (263, 752845), (289, 685115), (521, 380035), (1315, 150569), (1445, 137023), (2605, 76007), (4471, 44285), (8857, 22355)]