20402847745

素因数分解:

$5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{229}}^1\times {\mathrm{34871}}^1$

素因数の和:35185

約数の個数: 32

約数和(自身を含む): 28489029120

約数和(自身を除く): 8086181375

約数列:

[1, 5, 7, 35, 73, 229, 365, 511, 1145, 1603, 2555, 8015, 16717, 34871, 83585, 117019, 174355, 244097, 585095, 1220485, 2545583, 7985459, 12727915, 17819081, 39927295, 55898213, 89095405, 279491065, 582938507, 2914692535, 4080569549, 20402847745]

約数ペア:

[(1, 20402847745), (5, 4080569549), (7, 2914692535), (35, 582938507), (73, 279491065), (229, 89095405), (365, 55898213), (511, 39927295), (1145, 17819081), (1603, 12727915), (2555, 7985459), (8015, 2545583), (16717, 1220485), (34871, 585095), (83585, 244097), (117019, 174355)]