20666624

素因数分解:

$2^8\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{179}}^1$

素因数の和:247

約数の個数: 72

約数和(自身を含む): 46357920

約数和(自身を除く): 25691296

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 41, 44, 64, 82, 88, 128, 164, 176, 179, 256, 328, 352, 358, 451, 656, 704, 716, 902, 1312, 1408, 1432, 1804, 1969, 2624, 2816, 2864, 3608, 3938, 5248, 5728, 7216, 7339, 7876, 10496, 11456, 14432, 14678, 15752, 22912, 28864, 29356, 31504, 45824, 57728, 58712, 63008, 80729, 115456, 117424, 126016, 161458, 234848, 252032, 322916, 469696, 504064, 645832, 939392, 1291664, 1878784, 2583328, 5166656, 10333312, 20666624]

約数ペア:

[(1, 20666624), (2, 10333312), (4, 5166656), (8, 2583328), (11, 1878784), (16, 1291664), (22, 939392), (32, 645832), (41, 504064), (44, 469696), (64, 322916), (82, 252032), (88, 234848), (128, 161458), (164, 126016), (176, 117424), (179, 115456), (256, 80729), (328, 63008), (352, 58712), (358, 57728), (451, 45824), (656, 31504), (704, 29356), (716, 28864), (902, 22912), (1312, 15752), (1408, 14678), (1432, 14432), (1804, 11456), (1969, 10496), (2624, 7876), (2816, 7339), (2864, 7216), (3608, 5728), (3938, 5248)]