209947825

素因数分解:

$5^2\times {\mathrm{47}}^1\times {\mathrm{197}}^1\times {\mathrm{907}}^1$

素因数の和:1161

約数の個数: 24

約数和(自身を含む): 267518592

約数和(自身を除く): 57570767

約数列:

[1, 5, 25, 47, 197, 235, 907, 985, 1175, 4535, 4925, 9259, 22675, 42629, 46295, 178679, 213145, 231475, 893395, 1065725, 4466975, 8397913, 41989565, 209947825]

約数ペア:

[(1, 209947825), (5, 41989565), (25, 8397913), (47, 4466975), (197, 1065725), (235, 893395), (907, 231475), (985, 213145), (1175, 178679), (4535, 46295), (4925, 42629), (9259, 22675)]