20103765

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^2\times {\mathrm{89}}^1$

素因数の和:182

約数の個数: 48

約数和(自身を含む): 36469440

約数和(自身を除く): 16365675

約数列:

[1, 3, 5, 11, 15, 33, 37, 55, 89, 111, 165, 185, 267, 407, 445, 555, 979, 1221, 1335, 1369, 2035, 2937, 3293, 4107, 4895, 6105, 6845, 9879, 14685, 15059, 16465, 20535, 36223, 45177, 49395, 75295, 108669, 121841, 181115, 225885, 365523, 543345, 609205, 1340251, 1827615, 4020753, 6701255, 20103765]

約数ペア:

[(1, 20103765), (3, 6701255), (5, 4020753), (11, 1827615), (15, 1340251), (33, 609205), (37, 543345), (55, 365523), (89, 225885), (111, 181115), (165, 121841), (185, 108669), (267, 75295), (407, 49395), (445, 45177), (555, 36223), (979, 20535), (1221, 16465), (1335, 15059), (1369, 14685), (2035, 9879), (2937, 6845), (3293, 6105), (4107, 4895)]