20651672

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{101}}^1\times {\mathrm{419}}^1$

素因数の和:587

約数の個数: 32

約数和(自身を含む): 39841200

約数和(自身を除く): 19189528

約数列:

[1, 2, 4, 8, 61, 101, 122, 202, 244, 404, 419, 488, 808, 838, 1676, 3352, 6161, 12322, 24644, 25559, 42319, 49288, 51118, 84638, 102236, 169276, 204472, 338552, 2581459, 5162918, 10325836, 20651672]

約数ペア:

[(1, 20651672), (2, 10325836), (4, 5162918), (8, 2581459), (61, 338552), (101, 204472), (122, 169276), (202, 102236), (244, 84638), (404, 51118), (419, 49288), (488, 42319), (808, 25559), (838, 24644), (1676, 12322), (3352, 6161)]