20767145

素因数分解:

$5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{137}}^1$

素因数の和:281

約数の個数: 32

約数和(自身を含む): 29569536

約数和(自身を除く): 8802391

約数列:

[1, 5, 7, 35, 61, 71, 137, 305, 355, 427, 497, 685, 959, 2135, 2485, 4331, 4795, 8357, 9727, 21655, 30317, 41785, 48635, 58499, 68089, 151585, 292495, 340445, 593347, 2966735, 4153429, 20767145]

約数ペア:

[(1, 20767145), (5, 4153429), (7, 2966735), (35, 593347), (61, 340445), (71, 292495), (137, 151585), (305, 68089), (355, 58499), (427, 48635), (497, 41785), (685, 30317), (959, 21655), (2135, 9727), (2485, 8357), (4331, 4795)]