208668885

素因数分解:

$3^1\times 5^1\times {\mathrm{41}}^1\times {\mathrm{139}}^1\times {\mathrm{2441}}^1$

素因数の和:2629

約数の個数: 32

約数和(自身を含む): 344615040

約数和(自身を除く): 135946155

約数列:

[1, 3, 5, 15, 41, 123, 139, 205, 417, 615, 695, 2085, 2441, 5699, 7323, 12205, 17097, 28495, 36615, 85485, 100081, 300243, 339299, 500405, 1017897, 1501215, 1696495, 5089485, 13911259, 41733777, 69556295, 208668885]

約数ペア:

[(1, 208668885), (3, 69556295), (5, 41733777), (15, 13911259), (41, 5089485), (123, 1696495), (139, 1501215), (205, 1017897), (417, 500405), (615, 339299), (695, 300243), (2085, 100081), (2441, 85485), (5699, 36615), (7323, 28495), (12205, 17097)]