20118996856

素因数分解:

$2^3\times 7^1\times {\mathrm{107}}^1\times {\mathrm{211}}^1\times {\mathrm{15913}}^1$

素因数の和:16244

約数の個数: 64

約数和(自身を含む): 43724033280

約数和(自身を除く): 23605036424

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 107, 211, 214, 422, 428, 749, 844, 856, 1477, 1498, 1688, 2954, 2996, 5908, 5992, 11816, 15913, 22577, 31826, 45154, 63652, 90308, 111391, 127304, 158039, 180616, 222782, 316078, 445564, 632156, 891128, 1264312, 1702691, 3357643, 3405382, 6715286, 6810764, 11918837, 13430572, 13621528, 23503501, 23837674, 26861144, 47007002, 47675348, 94014004, 95350696, 188028008, 359267801, 718535602, 1437071204, 2514874607, 2874142408, 5029749214, 10059498428, 20118996856]

約数ペア:

[(1, 20118996856), (2, 10059498428), (4, 5029749214), (7, 2874142408), (8, 2514874607), (14, 1437071204), (28, 718535602), (56, 359267801), (107, 188028008), (211, 95350696), (214, 94014004), (422, 47675348), (428, 47007002), (749, 26861144), (844, 23837674), (856, 23503501), (1477, 13621528), (1498, 13430572), (1688, 11918837), (2954, 6810764), (2996, 6715286), (5908, 3405382), (5992, 3357643), (11816, 1702691), (15913, 1264312), (22577, 891128), (31826, 632156), (45154, 445564), (63652, 316078), (90308, 222782), (111391, 180616), (127304, 158039)]