181820015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{9679}}^1$

素因数の和:9731

約数の個数: 24

約数和(自身を含む): 249627840

約数和(自身を除く): 67807825

約数列:

[1, 5, 13, 17, 65, 85, 221, 289, 1105, 1445, 3757, 9679, 18785, 48395, 125827, 164543, 629135, 822715, 2139059, 2797231, 10695295, 13986155, 36364003, 181820015]

約数ペア:

[(1, 181820015), (5, 36364003), (13, 13986155), (17, 10695295), (65, 2797231), (85, 2139059), (221, 822715), (289, 629135), (1105, 164543), (1445, 125827), (3757, 48395), (9679, 18785)]