827990015

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{197}}^2\times {\mathrm{251}}^1$

素因数の和:667

約数の個数: 24

約数和(自身を含む): 1061614512

約数和(自身を除く): 233624497

約数列:

[1, 5, 17, 85, 197, 251, 985, 1255, 3349, 4267, 16745, 21335, 38809, 49447, 194045, 247235, 659753, 840599, 3298765, 4202995, 9741059, 48705295, 165598003, 827990015]

約数ペア:

[(1, 827990015), (5, 165598003), (17, 48705295), (85, 9741059), (197, 4202995), (251, 3298765), (985, 840599), (1255, 659753), (3349, 247235), (4267, 194045), (16745, 49447), (21335, 38809)]