20836712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{281}}^1$

素因数の和:354

約数の個数: 64

約数和(自身を含む): 45480960

約数和(自身を除く): 24644248

約数列:

[1, 2, 4, 8, 13, 23, 26, 31, 46, 52, 62, 92, 104, 124, 184, 248, 281, 299, 403, 562, 598, 713, 806, 1124, 1196, 1426, 1612, 2248, 2392, 2852, 3224, 3653, 5704, 6463, 7306, 8711, 9269, 12926, 14612, 17422, 18538, 25852, 29224, 34844, 37076, 51704, 69688, 74152, 84019, 113243, 168038, 200353, 226486, 336076, 400706, 452972, 672152, 801412, 905944, 1602824, 2604589, 5209178, 10418356, 20836712]

約数ペア:

[(1, 20836712), (2, 10418356), (4, 5209178), (8, 2604589), (13, 1602824), (23, 905944), (26, 801412), (31, 672152), (46, 452972), (52, 400706), (62, 336076), (92, 226486), (104, 200353), (124, 168038), (184, 113243), (248, 84019), (281, 74152), (299, 69688), (403, 51704), (562, 37076), (598, 34844), (713, 29224), (806, 25852), (1124, 18538), (1196, 17422), (1426, 14612), (1612, 12926), (2248, 9269), (2392, 8711), (2852, 7306), (3224, 6463), (3653, 5704)]