398004295

素因数分解:

$5^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{8887}}^1$

素因数の和:8971

約数の個数: 24

約数和(自身を含む): 526987296

約数和(自身を除く): 128983001

約数列:

[1, 5, 13, 53, 65, 169, 265, 689, 845, 3445, 8887, 8957, 44435, 44785, 115531, 471011, 577655, 1501903, 2355055, 6123143, 7509515, 30615715, 79600859, 398004295]

約数ペア:

[(1, 398004295), (5, 79600859), (13, 30615715), (53, 7509515), (65, 6123143), (169, 2355055), (265, 1501903), (689, 577655), (845, 471011), (3445, 115531), (8887, 44785), (8957, 44435)]