20425856

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{89}}^1\times {\mathrm{163}}^1$

素因数の和:277

約数の個数: 64

約数和(自身を含む): 45165600

約数和(自身を除く): 24739744

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 88, 89, 128, 163, 176, 178, 326, 352, 356, 652, 704, 712, 979, 1304, 1408, 1424, 1793, 1958, 2608, 2848, 3586, 3916, 5216, 5696, 7172, 7832, 10432, 11392, 14344, 14507, 15664, 20864, 28688, 29014, 31328, 57376, 58028, 62656, 114752, 116056, 125312, 159577, 229504, 232112, 319154, 464224, 638308, 928448, 1276616, 1856896, 2553232, 5106464, 10212928, 20425856]

約数ペア:

[(1, 20425856), (2, 10212928), (4, 5106464), (8, 2553232), (11, 1856896), (16, 1276616), (22, 928448), (32, 638308), (44, 464224), (64, 319154), (88, 232112), (89, 229504), (128, 159577), (163, 125312), (176, 116056), (178, 114752), (326, 62656), (352, 58028), (356, 57376), (652, 31328), (704, 29014), (712, 28688), (979, 20864), (1304, 15664), (1408, 14507), (1424, 14344), (1793, 11392), (1958, 10432), (2608, 7832), (2848, 7172), (3586, 5696), (3916, 5216)]