649778828

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{479}}^1\times {\mathrm{19949}}^1$

素因数の和:20449

約数の個数: 24

約数和(自身を含む): 1206576000

約数和(自身を除く): 556797172

約数列:

[1, 2, 4, 17, 34, 68, 479, 958, 1916, 8143, 16286, 19949, 32572, 39898, 79796, 339133, 678266, 1356532, 9555571, 19111142, 38222284, 162444707, 324889414, 649778828]

約数ペア:

[(1, 649778828), (2, 324889414), (4, 162444707), (17, 38222284), (34, 19111142), (68, 9555571), (479, 1356532), (958, 678266), (1916, 339133), (8143, 79796), (16286, 39898), (19949, 32572)]