196987515

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{305407}}^1$

素因数の和:305458

約数の個数: 16

約数和(自身を含む): 322510848

約数和(自身を除く): 125523333

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 305407, 916221, 1527035, 4581105, 13132501, 39397503, 65662505, 196987515]

約数ペア:

[(1, 196987515), (3, 65662505), (5, 39397503), (15, 13132501), (43, 4581105), (129, 1527035), (215, 916221), (645, 305407)]