197694590

素因数分解:

$2^1\times 5^1\times {\mathrm{991}}^1\times {\mathrm{19949}}^1$

素因数の和:20947

約数の個数: 16

約数和(自身を含む): 356227200

約数和(自身を除く): 158532610

約数列:

[1, 2, 5, 10, 991, 1982, 4955, 9910, 19949, 39898, 99745, 199490, 19769459, 39538918, 98847295, 197694590]

約数ペア:

[(1, 197694590), (2, 98847295), (5, 39538918), (10, 19769459), (991, 199490), (1982, 99745), (4955, 39898), (9910, 19949)]