12561538535

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{197}}^1\times {\mathrm{353}}^1\times {\mathrm{397}}^1$

素因数の和:972

約数の個数: 64

約数和(自身を含む): 18746525952

約数和(自身を除く): 6184987417

約数列:

[1, 5, 7, 13, 35, 65, 91, 197, 353, 397, 455, 985, 1379, 1765, 1985, 2471, 2561, 2779, 4589, 5161, 6895, 12355, 12805, 13895, 17927, 22945, 25805, 32123, 36127, 69541, 78209, 89635, 140141, 160615, 180635, 347705, 391045, 486787, 547463, 700705, 904033, 980987, 1016717, 1821833, 2433935, 2737315, 4520165, 4904935, 5083585, 6328231, 7117019, 9109165, 12752831, 27607777, 31641155, 35585095, 63764155, 138038885, 193254439, 358901101, 966272195, 1794505505, 2512307707, 12561538535]

約数ペア:

[(1, 12561538535), (5, 2512307707), (7, 1794505505), (13, 966272195), (35, 358901101), (65, 193254439), (91, 138038885), (197, 63764155), (353, 35585095), (397, 31641155), (455, 27607777), (985, 12752831), (1379, 9109165), (1765, 7117019), (1985, 6328231), (2471, 5083585), (2561, 4904935), (2779, 4520165), (4589, 2737315), (5161, 2433935), (6895, 1821833), (12355, 1016717), (12805, 980987), (13895, 904033), (17927, 700705), (22945, 547463), (25805, 486787), (32123, 391045), (36127, 347705), (69541, 180635), (78209, 160615), (89635, 140141)]