199900505

素因数分解:

$5^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{14243}}^1$

素因数の和:14656

約数の個数: 16

約数和(自身を含む): 274852224

約数和(自身を除く): 74951719

約数列:

[1, 5, 7, 35, 401, 2005, 2807, 14035, 14243, 71215, 99701, 498505, 5711443, 28557215, 39980101, 199900505]

約数ペア:

[(1, 199900505), (5, 39980101), (7, 28557215), (35, 5711443), (401, 498505), (2005, 99701), (2807, 71215), (14035, 14243)]