20637104

素因数分解:

$2^4\times {\mathrm{41}}^1\times {\mathrm{163}}^1\times {\mathrm{193}}^1$

素因数の和:405

約数の個数: 40

約数和(自身を含む): 41424432

約数和(自身を除く): 20787328

約数列:

[1, 2, 4, 8, 16, 41, 82, 163, 164, 193, 326, 328, 386, 652, 656, 772, 1304, 1544, 2608, 3088, 6683, 7913, 13366, 15826, 26732, 31459, 31652, 53464, 62918, 63304, 106928, 125836, 126608, 251672, 503344, 1289819, 2579638, 5159276, 10318552, 20637104]

約数ペア:

[(1, 20637104), (2, 10318552), (4, 5159276), (8, 2579638), (16, 1289819), (41, 503344), (82, 251672), (163, 126608), (164, 125836), (193, 106928), (326, 63304), (328, 62918), (386, 53464), (652, 31652), (656, 31459), (772, 26732), (1304, 15826), (1544, 13366), (2608, 7913), (3088, 6683)]