209218775

素因数分解:

$5^2\times {\mathrm{271}}^1\times {\mathrm{30881}}^1$

素因数の和:31162

約数の個数: 12

約数和(自身を含む): 260397024

約数和(自身を除く): 51178249

約数列:

[1, 5, 25, 271, 1355, 6775, 30881, 154405, 772025, 8368751, 41843755, 209218775]

約数ペア:

[(1, 209218775), (5, 41843755), (25, 8368751), (271, 772025), (1355, 154405), (6775, 30881)]