20918656

素因数分解:

$2^7\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{179}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 46267200

約数和(自身を除く): 25348544

約数列:

[1, 2, 4, 8, 11, 16, 22, 32, 44, 64, 83, 88, 128, 166, 176, 179, 332, 352, 358, 664, 704, 716, 913, 1328, 1408, 1432, 1826, 1969, 2656, 2864, 3652, 3938, 5312, 5728, 7304, 7876, 10624, 11456, 14608, 14857, 15752, 22912, 29216, 29714, 31504, 58432, 59428, 63008, 116864, 118856, 126016, 163427, 237712, 252032, 326854, 475424, 653708, 950848, 1307416, 1901696, 2614832, 5229664, 10459328, 20918656]

約数ペア:

[(1, 20918656), (2, 10459328), (4, 5229664), (8, 2614832), (11, 1901696), (16, 1307416), (22, 950848), (32, 653708), (44, 475424), (64, 326854), (83, 252032), (88, 237712), (128, 163427), (166, 126016), (176, 118856), (179, 116864), (332, 63008), (352, 59428), (358, 58432), (664, 31504), (704, 29714), (716, 29216), (913, 22912), (1328, 15752), (1408, 14857), (1432, 14608), (1826, 11456), (1969, 10624), (2656, 7876), (2864, 7304), (3652, 5728), (3938, 5312)]