216880685

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{419}}^1\times {\mathrm{643}}^1$

素因数の和:1097

約数の個数: 32

約数和(自身を含む): 311592960

約数和(自身を除く): 94712275

約数列:

[1, 5, 7, 23, 35, 115, 161, 419, 643, 805, 2095, 2933, 3215, 4501, 9637, 14665, 14789, 22505, 48185, 67459, 73945, 103523, 269417, 337295, 517615, 1347085, 1885919, 6196591, 9429595, 30982955, 43376137, 216880685]

約数ペア:

[(1, 216880685), (5, 43376137), (7, 30982955), (23, 9429595), (35, 6196591), (115, 1885919), (161, 1347085), (419, 517615), (643, 337295), (805, 269417), (2095, 103523), (2933, 73945), (3215, 67459), (4501, 48185), (9637, 22505), (14665, 14789)]