20181565796

素因数分解:

$2^2\times 7^1\times {\mathrm{103}}^1\times {\mathrm{643}}^1\times {\mathrm{10883}}^1$

素因数の和:11640

約数の個数: 48

約数和(自身を含む): 40822139904

約数和(自身を除く): 20640574108

約数列:

[1, 2, 4, 7, 14, 28, 103, 206, 412, 643, 721, 1286, 1442, 2572, 2884, 4501, 9002, 10883, 18004, 21766, 43532, 66229, 76181, 132458, 152362, 264916, 304724, 463603, 927206, 1120949, 1854412, 2241898, 4483796, 6997769, 7846643, 13995538, 15693286, 27991076, 31386572, 48984383, 97968766, 195937532, 720770207, 1441540414, 2883080828, 5045391449, 10090782898, 20181565796]

約数ペア:

[(1, 20181565796), (2, 10090782898), (4, 5045391449), (7, 2883080828), (14, 1441540414), (28, 720770207), (103, 195937532), (206, 97968766), (412, 48984383), (643, 31386572), (721, 27991076), (1286, 15693286), (1442, 13995538), (2572, 7846643), (2884, 6997769), (4501, 4483796), (9002, 2241898), (10883, 1854412), (18004, 1120949), (21766, 927206), (43532, 463603), (66229, 304724), (76181, 264916), (132458, 152362)]