20258645

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{461}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 28740096

約数和(自身を除く): 8481451

約数列:

[1, 5, 11, 17, 47, 55, 85, 187, 235, 461, 517, 799, 935, 2305, 2585, 3995, 5071, 7837, 8789, 21667, 25355, 39185, 43945, 86207, 108335, 238337, 368339, 431035, 1191685, 1841695, 4051729, 20258645]

約数ペア:

[(1, 20258645), (5, 4051729), (11, 1841695), (17, 1191685), (47, 431035), (55, 368339), (85, 238337), (187, 108335), (235, 86207), (461, 43945), (517, 39185), (799, 25355), (935, 21667), (2305, 8789), (2585, 7837), (3995, 5071)]