208065475

素因数分解:

$5^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{7699}}^1$

素因数の和:7779

約数の個数: 24

約数和(自身を含む): 274982400

約数和(自身を除く): 66916925

約数列:

[1, 5, 23, 25, 47, 115, 235, 575, 1081, 1175, 5405, 7699, 27025, 38495, 177077, 192475, 361853, 885385, 1809265, 4426925, 8322619, 9046325, 41613095, 208065475]

約数ペア:

[(1, 208065475), (5, 41613095), (23, 9046325), (25, 8322619), (47, 4426925), (115, 1809265), (235, 885385), (575, 361853), (1081, 192475), (1175, 177077), (5405, 38495), (7699, 27025)]