20682655

素因数分解:

$5^1\times 7^2\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1$

素因数の和:160

約数の個数: 48

約数和(自身を含む): 31026240

約数和(自身を除く): 10343585

約数列:

[1, 5, 7, 29, 35, 41, 49, 71, 145, 203, 205, 245, 287, 355, 497, 1015, 1189, 1421, 1435, 2009, 2059, 2485, 2911, 3479, 5945, 7105, 8323, 10045, 10295, 14413, 14555, 17395, 20377, 41615, 58261, 72065, 84419, 100891, 101885, 142639, 291305, 422095, 504455, 590933, 713195, 2954665, 4136531, 20682655]

約数ペア:

[(1, 20682655), (5, 4136531), (7, 2954665), (29, 713195), (35, 590933), (41, 504455), (49, 422095), (71, 291305), (145, 142639), (203, 101885), (205, 100891), (245, 84419), (287, 72065), (355, 58261), (497, 41615), (1015, 20377), (1189, 17395), (1421, 14555), (1435, 14413), (2009, 10295), (2059, 10045), (2485, 8323), (2911, 7105), (3479, 5945)]