208011655

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1\times {\mathrm{281}}^1$

素因数の和:507

約数の個数: 32

約数和(自身を含む): 269474688

約数和(自身を除く): 61463033

約数列:

[1, 5, 23, 41, 115, 157, 205, 281, 785, 943, 1405, 3611, 4715, 6437, 6463, 11521, 18055, 32185, 32315, 44117, 57605, 148051, 220585, 264983, 740255, 1014691, 1324915, 1808797, 5073455, 9043985, 41602331, 208011655]

約数ペア:

[(1, 208011655), (5, 41602331), (23, 9043985), (41, 5073455), (115, 1808797), (157, 1324915), (205, 1014691), (281, 740255), (785, 264983), (943, 220585), (1405, 148051), (3611, 57605), (4715, 44117), (6437, 32315), (6463, 32185), (11521, 18055)]