208045925

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{1999}}^1$

素因数の和:2213

約数の個数: 24

約数和(自身を含む): 270816000

約数和(自身を除く): 62770075

約数列:

[1, 5, 23, 25, 115, 181, 575, 905, 1999, 4163, 4525, 9995, 20815, 45977, 49975, 104075, 229885, 361819, 1149425, 1809095, 8321837, 9045475, 41609185, 208045925]

約数ペア:

[(1, 208045925), (5, 41609185), (23, 9045475), (25, 8321837), (115, 1809095), (181, 1149425), (575, 361819), (905, 229885), (1999, 104075), (4163, 49975), (4525, 45977), (9995, 20815)]