20358128

素因数分解:

$2^4\times 7^2\times {\mathrm{23}}^1\times {\mathrm{1129}}^1$

素因数の和:1174

約数の個数: 60

約数和(自身を含む): 47921040

約数和(自身を除く): 27562912

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 46, 49, 56, 92, 98, 112, 161, 184, 196, 322, 368, 392, 644, 784, 1127, 1129, 1288, 2254, 2258, 2576, 4508, 4516, 7903, 9016, 9032, 15806, 18032, 18064, 25967, 31612, 51934, 55321, 63224, 103868, 110642, 126448, 181769, 207736, 221284, 363538, 415472, 442568, 727076, 885136, 1272383, 1454152, 2544766, 2908304, 5089532, 10179064, 20358128]

約数ペア:

[(1, 20358128), (2, 10179064), (4, 5089532), (7, 2908304), (8, 2544766), (14, 1454152), (16, 1272383), (23, 885136), (28, 727076), (46, 442568), (49, 415472), (56, 363538), (92, 221284), (98, 207736), (112, 181769), (161, 126448), (184, 110642), (196, 103868), (322, 63224), (368, 55321), (392, 51934), (644, 31612), (784, 25967), (1127, 18064), (1129, 18032), (1288, 15806), (2254, 9032), (2258, 9016), (2576, 7903), (4508, 4516)]