40387955

素因数分解:

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

素因数の和:646

約数の個数: 16

約数和(自身を含む): 49240224

約数和(自身を除く): 8852269

約数列:

[1, 5, 131, 197, 313, 655, 985, 1565, 25807, 41003, 61661, 129035, 205015, 308305, 8077591, 40387955]

約数ペア:

[(1, 40387955), (5, 8077591), (131, 308305), (197, 205015), (313, 129035), (655, 61661), (985, 41003), (1565, 25807)]