20180887918

素因数分解:

$2^1\times {\mathrm{17}}^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{10463}}^1$

素因数の和:10617

約数の個数: 48

約数和(自身を含む): 33306660864

約数和(自身を除く): 13125772946

約数列:

[1, 2, 17, 34, 47, 71, 94, 142, 289, 578, 799, 1207, 1598, 2414, 3337, 6674, 10463, 13583, 20519, 20926, 27166, 41038, 56729, 113458, 177871, 355742, 491761, 742873, 964393, 983522, 1485746, 1928786, 3023807, 6047614, 8359937, 12628841, 16719874, 25257682, 34915031, 69830062, 142118929, 214690297, 284237858, 429380594, 593555527, 1187111054, 10090443959, 20180887918]

約数ペア:

[(1, 20180887918), (2, 10090443959), (17, 1187111054), (34, 593555527), (47, 429380594), (71, 284237858), (94, 214690297), (142, 142118929), (289, 69830062), (578, 34915031), (799, 25257682), (1207, 16719874), (1598, 12628841), (2414, 8359937), (3337, 6047614), (6674, 3023807), (10463, 1928786), (13583, 1485746), (20519, 983522), (20926, 964393), (27166, 742873), (41038, 491761), (56729, 355742), (113458, 177871)]