20805584

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{73}}^1\times {\mathrm{379}}^1$

素因数の和:507

約数の個数: 40

約数和(自身を含む): 41842560

約数和(自身を除く): 21036976

約数列:

[1, 2, 4, 8, 16, 47, 73, 94, 146, 188, 292, 376, 379, 584, 752, 758, 1168, 1516, 3032, 3431, 6064, 6862, 13724, 17813, 27448, 27667, 35626, 54896, 55334, 71252, 110668, 142504, 221336, 285008, 442672, 1300349, 2600698, 5201396, 10402792, 20805584]

約数ペア:

[(1, 20805584), (2, 10402792), (4, 5201396), (8, 2600698), (16, 1300349), (47, 442672), (73, 285008), (94, 221336), (146, 142504), (188, 110668), (292, 71252), (376, 55334), (379, 54896), (584, 35626), (752, 27667), (758, 27448), (1168, 17813), (1516, 13724), (3032, 6862), (3431, 6064)]