128577876

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{21559}}^1$

素因数の和:21644

約数の個数: 48

約数和(自身を含む): 347719680

約数和(自身を除く): 219141804

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 71, 84, 142, 213, 284, 426, 497, 852, 994, 1491, 1988, 2982, 5964, 21559, 43118, 64677, 86236, 129354, 150913, 258708, 301826, 452739, 603652, 905478, 1530689, 1810956, 3061378, 4592067, 6122756, 9184134, 10714823, 18368268, 21429646, 32144469, 42859292, 64288938, 128577876]

約数ペア:

[(1, 128577876), (2, 64288938), (3, 42859292), (4, 32144469), (6, 21429646), (7, 18368268), (12, 10714823), (14, 9184134), (21, 6122756), (28, 4592067), (42, 3061378), (71, 1810956), (84, 1530689), (142, 905478), (213, 603652), (284, 452739), (426, 301826), (497, 258708), (852, 150913), (994, 129354), (1491, 86236), (1988, 64677), (2982, 43118), (5964, 21559)]