201989515

素因数分解:

$5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{63419}}^1$

素因数の和:63451

約数の個数: 24

約数和(自身を含む): 303654960

約数和(自身を除く): 101665445

約数列:

[1, 5, 7, 13, 35, 49, 65, 91, 245, 455, 637, 3185, 63419, 317095, 443933, 824447, 2219665, 3107531, 4122235, 5771129, 15537655, 28855645, 40397903, 201989515]

約数ペア:

[(1, 201989515), (5, 40397903), (7, 28855645), (13, 15537655), (35, 5771129), (49, 4122235), (65, 3107531), (91, 2219665), (245, 824447), (455, 443933), (637, 317095), (3185, 63419)]