208549985

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{7649}}^1$

素因数の和:7721

約数の個数: 32

約数和(自身を含む): 308448000

約数和(自身を除く): 99898015

約数列:

[1, 5, 7, 19, 35, 41, 95, 133, 205, 287, 665, 779, 1435, 3895, 5453, 7649, 27265, 38245, 53543, 145331, 267715, 313609, 726655, 1017317, 1568045, 2195263, 5086585, 5958571, 10976315, 29792855, 41709997, 208549985]

約数ペア:

[(1, 208549985), (5, 41709997), (7, 29792855), (19, 10976315), (35, 5958571), (41, 5086585), (95, 2195263), (133, 1568045), (205, 1017317), (287, 726655), (665, 313609), (779, 267715), (1435, 145331), (3895, 53543), (5453, 38245), (7649, 27265)]