19955363408

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{491}}^1\times {\mathrm{110441}}^1$

素因数の和:110963

約数の個数: 40

約数和(自身を含む): 40427073216

約数和(自身を除く): 20471709808

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 491, 982, 1964, 3928, 7856, 11293, 22586, 45172, 90344, 110441, 180688, 220882, 441764, 883528, 1767056, 2540143, 5080286, 10160572, 20321144, 40642288, 54226531, 108453062, 216906124, 433812248, 867624496, 1247210213, 2494420426, 4988840852, 9977681704, 19955363408]

約数ペア:

[(1, 19955363408), (2, 9977681704), (4, 4988840852), (8, 2494420426), (16, 1247210213), (23, 867624496), (46, 433812248), (92, 216906124), (184, 108453062), (368, 54226531), (491, 40642288), (982, 20321144), (1964, 10160572), (3928, 5080286), (7856, 2540143), (11293, 1767056), (22586, 883528), (45172, 441764), (90344, 220882), (110441, 180688)]