208519495

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{223}}^1$

素因数の和:471

約数の個数: 32

約数和(自身を含む): 269402112

約数和(自身を除く): 60882617

約数列:

[1, 5, 23, 47, 115, 173, 223, 235, 865, 1081, 1115, 3979, 5129, 5405, 8131, 10481, 19895, 25645, 38579, 40655, 52405, 187013, 192895, 241063, 887317, 935065, 1205315, 1813213, 4436585, 9066065, 41703899, 208519495]

約数ペア:

[(1, 208519495), (5, 41703899), (23, 9066065), (47, 4436585), (115, 1813213), (173, 1205315), (223, 935065), (235, 887317), (865, 241063), (1081, 192895), (1115, 187013), (3979, 52405), (5129, 40655), (5405, 38579), (8131, 25645), (10481, 19895)]