20145484072

素因数分解:

$2^3\times 7^2\times {\mathrm{103}}^1\times {\mathrm{498947}}^1$

素因数の和:499070

約数の個数: 48

約数和(自身を含む): 44366456160

約数和(自身を除く): 24220972088

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 103, 196, 206, 392, 412, 721, 824, 1442, 2884, 5047, 5768, 10094, 20188, 40376, 498947, 997894, 1995788, 3492629, 3991576, 6985258, 13970516, 24448403, 27941032, 48896806, 51391541, 97793612, 102783082, 195587224, 205566164, 359740787, 411132328, 719481574, 1438963148, 2518185509, 2877926296, 5036371018, 10072742036, 20145484072]

約数ペア:

[(1, 20145484072), (2, 10072742036), (4, 5036371018), (7, 2877926296), (8, 2518185509), (14, 1438963148), (28, 719481574), (49, 411132328), (56, 359740787), (98, 205566164), (103, 195587224), (196, 102783082), (206, 97793612), (392, 51391541), (412, 48896806), (721, 27941032), (824, 24448403), (1442, 13970516), (2884, 6985258), (5047, 3991576), (5768, 3492629), (10094, 1995788), (20188, 997894), (40376, 498947)]