251389215

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{72551}}^1$

素因数の和:72580

約数の個数: 48

約数和(自身を含む): 543269376

約数和(自身を除く): 291880161

約数列:

[1, 3, 5, 7, 9, 11, 15, 21, 33, 35, 45, 55, 63, 77, 99, 105, 165, 231, 315, 385, 495, 693, 1155, 3465, 72551, 217653, 362755, 507857, 652959, 798061, 1088265, 1523571, 2394183, 2539285, 3264795, 3990305, 4570713, 5586427, 7182549, 7617855, 11970915, 16759281, 22853565, 27932135, 35912745, 50277843, 83796405, 251389215]

約数ペア:

[(1, 251389215), (3, 83796405), (5, 50277843), (7, 35912745), (9, 27932135), (11, 22853565), (15, 16759281), (21, 11970915), (33, 7617855), (35, 7182549), (45, 5586427), (55, 4570713), (63, 3990305), (77, 3264795), (99, 2539285), (105, 2394183), (165, 1523571), (231, 1088265), (315, 798061), (385, 652959), (495, 507857), (693, 362755), (1155, 217653), (3465, 72551)]