201939775

素因数分解:

$5^2\times {\mathrm{131}}^1\times {\mathrm{197}}^1\times {\mathrm{313}}^1$

素因数の和:651

約数の個数: 24

約数和(自身を含む): 254407824

約数和(自身を除く): 52468049

約数列:

[1, 5, 25, 131, 197, 313, 655, 985, 1565, 3275, 4925, 7825, 25807, 41003, 61661, 129035, 205015, 308305, 645175, 1025075, 1541525, 8077591, 40387955, 201939775]

約数ペア:

[(1, 201939775), (5, 40387955), (25, 8077591), (131, 1541525), (197, 1025075), (313, 645175), (655, 308305), (985, 205015), (1565, 129035), (3275, 61661), (4925, 41003), (7825, 25807)]